Home
Search results “Complexity theory and cryptology pdf printer”
Symmetric Key and Public Key Encryption
 
06:45
Modern day encryption is performed in two different ways. Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos. Using the same key or using a pair of keys called the public and private keys. This video looks at how these systems work and how they can be used together to perform encryption. Download the PDF handout http://itfreetraining.com/Handouts/Ce... Encryption Types Encryption is the process of scrambling data so it cannot be read without a decryption key. Encryption prevents data being read by a 3rd party if it is intercepted by a 3rd party. The two encryption methods that are used today are symmetric and public key encryption. Symmetric Key Symmetric key encryption uses the same key to encrypt data as decrypt data. This is generally quite fast when compared with public key encryption. In order to protect the data, the key needs to be secured. If a 3rd party was able to gain access to the key, they could decrypt any data that was encrypt with that data. For this reason, a secure channel is required to transfer the key if you need to transfer data between two points. For example, if you encrypted data on a CD and mail it to another party, the key must also be transferred to the second party so that they can decrypt the data. This is often done using e-mail or the telephone. In a lot of cases, sending the data using one method and the key using another method is enough to protect the data as an attacker would need to get both in order to decrypt the data. Public Key Encryption This method of encryption uses two keys. One key is used to encrypt data and the other key is used to decrypt data. The advantage of this is that the public key can be downloaded by anyone. Anyone with the public key can encrypt data that can only be decrypted using a private key. This means the public key does not need to be secured. The private key does need to be keep in a safe place. The advantage of using such a system is the private key is not required by the other party to perform encryption. Since the private key does not need to be transferred to the second party there is no risk of the private key being intercepted by a 3rd party. Public Key encryption is slower when compared with symmetric key so it is not always suitable for every application. The math used is complex but to put it simply it uses the modulus or remainder operator. For example, if you wanted to solve X mod 5 = 2, the possible solutions would be 2, 7, 12 and so on. The private key provides additional information which allows the problem to be solved easily. The math is more complex and uses much larger numbers than this but basically public and private key encryption rely on the modulus operator to work. Combing The Two There are two reasons you want to combine the two. The first is that often communication will be broken into two steps. Key exchange and data exchange. For key exchange, to protect the key used in data exchange it is often encrypted using public key encryption. Although slower than symmetric key encryption, this method ensures the key cannot accessed by a 3rd party while being transferred. Since the key has been transferred using a secure channel, a symmetric key can be used for data exchange. In some cases, data exchange may be done using public key encryption. If this is the case, often the data exchange will be done using a small key size to reduce the processing time. The second reason that both may be used is when a symmetric key is used and the key needs to be provided to multiple users. For example, if you are using encryption file system (EFS) this allows multiple users to access the same file, which includes recovery users. In order to make this possible, multiple copies of the same key are stored in the file and protected from being read by encrypting it with the public key of each user that requires access. References "Public-key cryptography" http://en.wikipedia.org/wiki/Public-k... "Encryption" http://en.wikipedia.org/wiki/Encryption
Views: 503314 itfreetraining
The Map of Mathematics
 
11:06
The entire field of mathematics summarised in a single map! This shows how pure mathematics and applied mathematics relate to each other and all of the sub-topics they are made from. If you would like to buy a poster of this map, they are available here: North America: https://store.dftba.com/products/map-of-mathematics-poster Everywhere else: http://www.redbubble.com/people/dominicwalliman/works/25095968-the-map-of-mathematics I have also made a version available for educational use which you can find here: https://www.flickr.com/photos/[email protected]/32264483720/in/dateposted-public/ To err is to human, and I human a lot. I always try my best to be as correct as possible, but unfortunately I make mistakes. This is the errata where I correct my silly mistakes. My goal is to one day do a video with no errors! 1. The number one is not a prime number. The definition of a prime number is a number can be divided evenly only by 1, or itself. And it must be a whole number GREATER than 1. (This last bit is the bit I forgot). 2. In the trigonometry section I drew cos(theta) = opposite / adjacent. This is the kind of thing you learn in high school and guess what. I got it wrong! Dummy. It should be cos(theta) = adjacent / hypotenuse. 3. My drawing of dice is slightly wrong. Most dice have their opposite sides adding up to 7, so when I drew 3 and 4 next to each other that is incorrect. 4. I said that the Gödel Incompleteness Theorems implied that mathematics is made up by humans, but that is wrong, just ignore that statement. I have learned more about it now, here is a good video explaining it: https://youtu.be/O4ndIDcDSGc 5. In the animation about imaginary numbers I drew the real axis as vertical and the imaginary axis as horizontal which is opposite to the conventional way it is done. Thanks so much to my supporters on Patreon. I hope to make money from my videos one day, but I’m not there yet! If you enjoy my videos and would like to help me make more this is the best way and I appreciate it very much. https://www.patreon.com/domainofscience Here are links to some of the sources I used in this video. Links: Summary of mathematics: https://en.wikipedia.org/wiki/Mathematics Earliest human counting: http://mathtimeline.weebly.com/early-human-counting-tools.html First use of zero: https://en.wikipedia.org/wiki/0#History http://www.livescience.com/27853-who-invented-zero.html First use of negative numbers: https://www.quora.com/Who-is-the-inventor-of-negative-numbers Renaissance science: https://en.wikipedia.org/wiki/History_of_science_in_the_Renaissance History of complex numbers: http://rossroessler.tripod.com/ https://en.wikipedia.org/wiki/Mathematics Proof that pi is irrational: https://www.quora.com/How-do-you-prove-that-pi-is-an-irrational-number and https://en.wikipedia.org/wiki/Proof_that_%CF%80_is_irrational#Laczkovich.27s_proof Also, if you enjoyed this video, you will probably like my science books, available in all good books shops around the work and is printed in 16 languages. Links are below or just search for Professor Astro Cat. They are fun children's books aimed at the age range 7-12. But they are also a hit with adults who want good explanations of science. The books have won awards and the app won a Webby. Frontiers of Space: http://nobrow.net/shop/professor-astro-cats-frontiers-of-space/ Atomic Adventure: http://nobrow.net/shop/professor-astro-cats-atomic-adventure/ Intergalactic Activity Book: http://nobrow.net/shop/professor-astro-cats-intergalactic-activity-book/ Solar System App: http://www.minilabstudios.com/apps/professor-astro-cats-solar-system/ Find me on twitter, instagram, and my website: http://dominicwalliman.com https://twitter.com/DominicWalliman https://www.instagram.com/dominicwalliman https://www.facebook.com/dominicwalliman
Views: 4482910 Domain of Science
The Quantum Conspiracy: What Popularizers of QM Don't Want You to Know
 
01:03:43
Google Tech Talk January 6, 2011 Presented by Ron Garret. ABSTRACT Richard Feynman once famously quipped that no one understands quantum mechanics, and popular accounts continue to promulgate the view that QM is an intractable mystery (probably because that helps to sell books). QM is certainly unintuitive, but the idea that no one understands it is far from the truth. In fact, QM is no more difficult to understand than relativity. The problem is that the vast majority of popular accounts of QM are simply flat-out wrong. They are based on the so-called Copenhagen interpretation of QM, which has been thoroughly discredited for decades. It turns out that if Copenhagen were true then it would be possible to communicate faster than light, and hence send signals backwards in time. This talk describes an alternative interpretation based on quantum information theory (QIT) which is consistent with current scientific knowledge. It turns out that there is a simple intuition that makes almost all quantum mysteries simply evaporate, and replaces them with an easily understood (albeit strange) insight: measurement and entanglement are the same physical phenomenon, and you don't really exist. Slides are available here: https://docs.google.com/a/google.com/present/edit?id=0AelF4upZ7VjZZGM1eGttOGJfNDNkenFtNnFkaw&hl=en Link to the paper: http://www.flownet.com/ron/QM.pdf About the speaker: Dr. Ron Garret was an AI and robotics researcher at the NASA Jet Propulsion Lab for fifteen years before taking a year off to work at Google in June of 2000. He was the lead engineer on the first release of AdWords, and the original author of the Google Translation Console. Since leaving Google he has started a new career as an entrepreneur, angel investor and filmmaker. He has co-founded three startups, invested in a dozen others, and made a feature-length documentary about homelessness.
Views: 1613722 GoogleTechTalks
Mod-01 Lec-02 Storage, Processing, Networking
 
57:05
Storage Systems by Dr. K. Gopinath,Department of Computer Science and Engineering,IISc Bangalore.For more details on NPTEL visit http://nptel.ac.in
Views: 5222 nptelhrd
Data Mining: How You're Revealing More Than You Think
 
11:13
Data mining recently made big news with the Cambridge Analytica scandal, but it is not just for ads and politics. It can help doctors spot fatal infections and it can even predict massacres in the Congo. Hosted by: Stefan Chin Head to https://scishowfinds.com/ for hand selected artifacts of the universe! ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Sam Lutfi, Nicholas Smith, D.A. Noe, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, Tim Curwick, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.aaai.org/ojs/index.php/aimagazine/article/viewArticle/1230 https://www.theregister.co.uk/2006/08/15/beer_diapers/ https://www.theatlantic.com/technology/archive/2012/04/everything-you-wanted-to-know-about-data-mining-but-were-afraid-to-ask/255388/ https://www.economist.com/node/15557465 https://blogs.scientificamerican.com/guest-blog/9-bizarre-and-surprising-insights-from-data-science/ https://qz.com/584287/data-scientists-keep-forgetting-the-one-rule-every-researcher-should-know-by-heart/ https://www.amazon.com/Predictive-Analytics-Power-Predict-Click/dp/1118356853 http://dml.cs.byu.edu/~cgc/docs/mldm_tools/Reading/DMSuccessStories.html http://content.time.com/time/magazine/article/0,9171,2058205,00.html https://www.nytimes.com/2012/02/19/magazine/shopping-habits.html?pagewanted=all&_r=0 https://www2.deloitte.com/content/dam/Deloitte/de/Documents/deloitte-analytics/Deloitte_Predictive-Maintenance_PositionPaper.pdf https://www.cs.helsinki.fi/u/htoivone/pubs/advances.pdf http://cecs.louisville.edu/datamining/PDF/0471228524.pdf https://bits.blogs.nytimes.com/2012/03/28/bizarre-insights-from-big-data https://scholar.harvard.edu/files/todd_rogers/files/political_campaigns_and_big_data_0.pdf https://insights.spotify.com/us/2015/09/30/50-strangest-genre-names/ https://www.theguardian.com/news/2005/jan/12/food.foodanddrink1 https://adexchanger.com/data-exchanges/real-world-data-science-how-ebay-and-placed-put-theory-into-practice/ https://www.theverge.com/2015/9/30/9416579/spotify-discover-weekly-online-music-curation-interview http://blog.galvanize.com/spotify-discover-weekly-data-science/ Audio Source: https://freesound.org/people/makosan/sounds/135191/ Image Source: https://commons.wikimedia.org/wiki/File:Swiss_average.png
Views: 153961 SciShow
[Discrete Math] Modular Exponentiation
 
09:14
Shows how to do a modular exponentiation, sometimes called a power mod. For instance, 3^100 mod 7 is a power mod.
Views: 128488 Tim Farage
Map of Computer Science
 
10:58
The field of computer science summarised. Learn more at this video's sponsor https://brilliant.org/dos Computer science is the subject that studies what computers can do and investigates the best ways you can solve the problems of the world with them. It is a huge field overlapping pure mathematics, engineering and many other scientific disciplines. In this video I summarise as much of the subject as I can and show how the areas are related to each other. You can buy this poster here: North America: https://store.dftba.com/products/map-of-computer-science-poster Everywhere else: https://www.redbubble.com/people/dominicwalliman/works/27929629-map-of-computer-science?p=poster&finish=semi_gloss&size=small Get all my other posters here: https://www.redbubble.com/people/dominicwalliman A couple of notes on this video: 1. Some people have commented that I should have included computer security alongside hacking, and I completely agree, that was an oversight on my part. Apologies to all the computer security professionals, and thanks for all the hard work! 2. I also failed to mention interpreters alongside compilers in the complier section. Again, I’m kicking myself because of course this is an important concept for people to hear about. Also the layers of languages being compiled to other languages is overly convoluted, in practice it is more simple than this. I guess I should have picked one simple example. 3. NP-complete problems are possible to solve, they just become very difficult to solve very quickly as they get bigger. When I said NP-complete and then "impossible to solve", I meant that the large NP-complete problems that industry is interested in solving were thought to be practically impossible to solve. And free downloadable versions of this and the other posters here. If you want to print them out for educational purposes please do! https://www.flickr.com/photos/[email protected]/ Thanks so much to my supporters on Patreon. If you enjoy my videos and would like to help me make more this is the best way and I appreciate it very much. https://www.patreon.com/domainofscience I also write a series of children’s science books call Professor Astro Cat, these links are to the publisher, but they are available in all good bookshops around the world in 18 languages and counting: Frontiers of Space (age 7+): http://nobrow.net/shop/professor-astro-cats-frontiers-of-space/ Atomic Adventure (age 7+): http://nobrow.net/shop/professor-astro-cats-atomic-adventure/ Intergalactic Activity Book (age 7+): http://nobrow.net/shop/professor-astro-cats-intergalactic-activity-book/ Solar System Book (age 3+, available in UK now, and rest of world in spring 2018): http://nobrow.net/shop/professor-astro-cats-solar-system/? Solar System App: http://www.minilabstudios.com/apps/professor-astro-cats-solar-system/ And the new Professor Astro Cat App: https://itunes.apple.com/us/app/galactic-genius-with-astro-cat/id1212841840?mt=8 Find me on twitter, Instagram, and my website: http://dominicwalliman.com https://twitter.com/DominicWalliman https://www.instagram.com/dominicwalliman https://www.facebook.com/dominicwalliman
Views: 1895753 Domain of Science
Free Cryptocurrency Course: Learn Everything You Need to Know About Cryptocurrencies Today!
 
06:03:57
Want more? Enroll in the full course at: https://www.udemy.com/the-complete-cryptocurrency-course-more-than-5-courses-in-1/?couponCode=WB73018CCC Here are more details on the full 24 hour version of this Comprehensive COMPLETE Cryptocurrency Course! I guarantee that this is THE most thorough cryptocurrency course available ANYWHERE on the market - or your money back (30 day money back guarantee). This course and the many exercises in this course are for beginner or advanced users in any country! By an Award Winning MBA professor who is a top selling online business teacher, top selling author, former Goldman Sachs employee, Columbia MBA (finance major) and venture capitalist who has invested in and sat on the boards of cryptocurrency companies since 2013 and a hedge fund industry veteran and founder. He is also the author of the #1 best selling business course on Udemy. THIS COMPLETE CRYPTOCURRENCY COURSE is 5+ courses in 1! Cryptocurrency Investing Cryptocurrency Mining Cryptocurrency Wallets Cryptocurrency Exchanges Blockchain Creating a Diversified Portfolio & Much More! Also included in this course is a very comprehensive Excel spreadsheet that contains more than 30 Cryptocurrency exercises to help you learn everything you need to know about cryptocurrencies (whether you are a beginner or an advanced user). No prior cryptocurrency or finance or accounting or tech or Excel experience is required to take this course. We Will Cover More than 10 Cryptocurrencies in this Course (and how to buy & sell each one, what are the pros and cons of each one & how to mine each one): Bitcoin Ethereum Ripple Litecoin Monero Zcash Dash NEO Cardano Stellar ...and more (this course will constantly be updated with more cryptocurrencies) We Will Cover More than 5 Wallets in this Course (how to set one up, the pros & cons of all 5 wallet types and how to transfer money between them): QR Code Wallets Four USB Wallets (Trezor. Ledger Nano S, DigitalBitBox & KeepKey) Coinbase Electrum Blockchain ...and more (this course will constantly be updated with more wallets) We Will Cover the More than 5 Exchanges in this Course (how to transact with each one): GDAX Poloniex Kraken Bittrex Gemini Binance ...& more (this course will constantly be updated with more exchanges) Here Are Some More Topics That We Will Cover In This Course: The Future of Money & What is Blockchain? Introduction to 10+ Cryptocurrencies (Mining, Investing & Much More) Create an Investment Portfolio of Cryptocurrencies Understand What Makes a Great Cryptocurrency as A Great Long-Term Investment Introduction to 5+ Wallets to Use to Store Your Cryptocurrencies Introduction to 5+ Exchanges to Use to Buy or Sell Cryptocurrencies Introduction to Mining & Building a Mining PC from Scratch! Cryptocurrency Investment Framework (made in Excel) Watching out for Scams & Managing Risk What Are the Biggest Mistakes New Investors Make in Cryptocurrencies? How to Identify the Next Great Cryptocurrency (What to Look For & Watch Out For) When Should You Buy or Sell a Cryptocurrency? How Do You Read Charts & Look for Buy or Sell Signals What Makes a Great Wallet (What to Look For From Researching a Wallet) Introduction to ICOs + What Makes a Great ICO (What To Look For From Researching An ICO More than 100 Great Online Cryptocurrency Resources You can use the comprehensive Excel exercise document in this course on a Mac or on a PC (I recommend having Excel version 2013 or later in order to complete all of the cryptocurrency exercises in this course). This course and the included comprehensive Complete Cryptocurrency Excel dashboard exercise file is a roadmap for your personal & technical/finance cryptocurrency success. All of the tools you need to be successful with cryptocurrencies are included in this course & the entire course is based on real life Practical Knowledge and experience & not based on theory. Please click the take this course button so you can take your cryptocurrency skills to the next level. Requirements: No prior technology or cryptocurrency or finance or accounting or Excel experience is required to take this course. Please note that Excel 2013 (or a newer version) is recommended in order to complete some of the exercises in this course. The Excel exercises in this course work on the Windows and Mac versions of Excel. Who is the target audience? Anyone in ANY country interested in learning EVERYTHING about cryptocurrency can take this course as this 23+ hour COMPLETE course is 5+ courses in 1 (1: Investing, 2: Mining, 3: Wallets, 4: Blockchain , 5: Transacting, 6: Creating a Diversified Portfolio & Much More!) *** Again, I guarantee that this is THE most thorough cryptocurrency course available ANYWHERE on the market - or your money back (30 day money back guarantee). *** Enroll in the full course at: https://www.udemy.com/the-complete-cryptocurrency-course-more-than-5-courses-in-1/?couponCode=WB73018CCC Thanks, Chris Haroun
The Anonymisation Problem - Computerphile
 
10:17
Keeping data anonymous seems easy, but keeping identities separate is a big problem. Professor Derek McAuley explains. EXTRA BITS: https://youtu.be/4D6OO9zyAuc https://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 63797 Computerphile
Peter Warren Singer: "Cybersecurity and Cyberwar: What Everyone Needs to Know" | Talks at Google
 
58:52
Cybersecurity and CyberWar discusses the cybersecurity issues that challenge everyone: politicians wrestling with everything from cybercrime to online freedom; generals protecting the nation from new forms of attack while planning new cyberwars; business executives defending firms from once unimaginable threats; lawyers and ethicists building new frameworks for right and wrong. In Cybersecurity and CyberWar, New York Times best-selling author Peter W. Singer and noted cyber expert Allan Friedman team up to provide the kind of easy-to-read, deeply informative resource book that has been missing on this crucial issue of 21st century life. The book is structured around the key question areas of cyberspace and its security: how does it work and why does it matter? Also discussed are the important (and entertaining) issues and characters of cybersecurity, from the "Anonymous" hacker group and the Stuxnet computer virus to the new cyber units of the Chinese and US militaries. Peter W. Singer is a Senior Fellow and the Director of the 21st Century Defense Initiative at the Brookings Institution. You can find Peter's books on Google Play: http://goo.gl/b9zXOX This talk was hosted by Boris Debic.
Views: 53496 Talks at Google
Business Math #2: Present Value & Future Value of Money Calculations on Casio fx-991ES Calculator
 
06:30
Business/Financial Mathematics Tutorials- http://goo.gl/KGkCDW Today I'll tell you how to how to calculate Present Value(PV) and Future Value(FV) of an annuity or lump-sum amount very easily using Casio fx-991ES Calculator. I'll also solve two word problems on Present Value and Future Value. I make videos on Statistics,Numerical Methods, Business & Financial Mathematics,Operation Research,Computer Science & Engineering(CSE),Android Application Reviews,India Travel & Tourism,Street Foods,Life Tips and many other topics. And a series of videos showing how to use your scientific calculators Casio fx-991ES & fx-82MS to do maths easily. Join me at my YouTube Channel- http://www.youtube.com/sujoyn70 Join me at my Blog- http://www.sujoyn70.blogspot.com Incoming Tags- z score statistics,find mean median mode statistics in ms excel,variance,standard deviation,linear regression,data processing,confidence intervals,average value,probability theory,binomial distribution,matrix,random numbers,error propagation,t statistics analysis,hypothesis testing,theorem,chi square,time series,data collection,sampling,p value,scatterplots,statistics lectures,statistics tutorials,business mathematics statistics,share stock market statistics in calculator,business analytics,GTA,continuous frequency distribution,statistics mathematics in real life,modal class,n is even,n is odd,median mean of series of numbers,math help,Sujoy Krishna Das,n+1/2 element,measurement of variation,measurement of central tendency,range of numbers,interquartile range,casio fx991,casio fx82,casio fx570,casio fx115es,casio 9860,casio 9750,casio 83gt,TI BAII+ financial,casio piano,casio calculator tricks and hacks,how to cheat in exam and not get caught,grouped interval data,equation of triangle rectangle curve parabola hyperbola,graph theory,operation research(OR),numerical methods,decision making,pie chart,bar graph,computer data analysis,histogram,statistics formula,matlab tutorial,find arithmetic mean geometric mean,find population standard deviation,find sample standard deviation,how to use a graphic calculator,pre algebra,pre calculus,absolute deviation,TI Nspire,TI 84 TI83 calculator tutorial,texas instruments calculator,grouped data,set theory,IIT JEE,AIEEE,GCSE,CAT,MAT,SAT,MAT,MBBS,JELET,JEXPO,VOCLET,Indiastudychannel,IAS,IPS,IFS,GATE,B-Tech,M-Tech,AMIE,MBA,BBA,BCA,MCA,XAT,TOEFL,CBSE,ICSE,HS,WBUT,SSC,IUPAC,Narendra Modi,Sachin Tendulkar Farewell Speech,Dhoom 3,Arvind Kejriwal,maths revision,how to score good marks in exams,how to pass math exams easily,JEE 12th physics chemistry maths PCM,JEE maths shortcut techniques,quadratic equations,competition exams tips and ticks,competition maths,govt job,JEE KOTA,college math,mean value theorem,L hospital rule,tech guru awaaz,derivation,cryptography,iphone 5 fingerprint hack,crash course,CCNA,converting fractions,solve word problem,cipher,game theory,GDP,how to earn money online on youtube,demand curve,computer science,prime factorization,LCM & GCF,gauss elimination,vector,complex numbers,number systems,vector algebra,logarithm,trigonometry,organic chemistry,electrical math problem,eigen value eigen vectors,runge kutta,gauss jordan,simpson 1/3 3/8 trapezoidal rule,solved problem example,newton raphson,interpolation,integration,differentiation,regula falsi,programming,algorithm,gauss seidel,gauss jacobi,taylor series,iteration,binary arithmetic,logic gates,matrix inverse,determinant of matrix,matrix calculator program,sex in ranchi,sex in kolkata,vogel approximation VAM optimization problem,North west NWCR,Matrix minima,Modi method,assignment problem,transportation problem,simplex,k map,boolean algebra,android,casio FC 200v 100v financial,management mathematics tutorials,net present value NPV,time value of money TVM,internal rate of return IRR Bond price,present value PV and future value FV of annuity casio,simple interest SI & compound interest CI casio,break even point,comedy,quantitative aptitude, cognitive computing,IBM Watson
Views: 48252 Sujoy Krishna Das
Determinant Of 4x4 Matrix By Chio's Method Example
 
07:21
Matrix Algebra videos- http://goo.gl/4gvpeC I'm Sujoy and today I'll tell you how to find determinant of a 4x4 Matrix using Chio's Method. Chio's method of matrix determinant is very easy and can be used to find determinant of square matrices upto any order, say 2x2, 3x3, 4x4, 5x5 i.e upto nxn matrices. It uses matrix reduction technique. I make videos on Statistics,Numerical Methods, Business & Financial Mathematics,Operation Research,Computer Science & Engineering(CSE),Android Application Reviews,India Travel & Tourism,Street Foods,Life Tips and many other topics. And a series of videos showing how to use your scientific calculators Casio fx-991ES & fx-82MS to do maths easily. Click my YouTube channel's link below to watch them. Subscribe to my youtube channel below- http://www.youtube.com/sujoyn70 Please like & share this video :-) My Blog- http://www.sujoyn70.blogspot.com IndiaStudyChannel- http://www.indiastudychannel.com/r/sujoy70.aspx Incoming Tags- z score statistics,find mean median mode statistics in ms excel,variance,standard deviation,linear regression,data processing,confidence intervals,average value,probability theory,binomial distribution,matrix,random numbers,error propagation,t statistics analysis,hypothesis testing,theorem,chi square,time series,data collection,sampling,p value,scatterplots,statistics lectures,statistics tutorials,business mathematics statistics,share stock market statistics in calculator,business analytics,GTA,continuous frequency distribution,statistics mathematics in real life,modal class,n is even,n is odd,median mean of series of numbers,math help,Sujoy Krishna Das,n+1/2 element,measurement of variation,measurement of central tendency,range of numbers,interquartile range,casio fx991,casio fx82,casio fx570,casio fx115es,casio 9860,casio 9750,casio 83gt,TI BAII+ financial,casio piano,casio calculator tricks and hacks,how to cheat in exam and not get caught,grouped interval data,equation of triangle rectangle curve parabola hyperbola,graph theory,operation research(OR),numerical methods,decision making,pie chart,bar graph,computer data analysis,histogram,statistics formula,matlab tutorial,find arithmetic mean geometric mean,find population standard deviation,find sample standard deviation,how to use a graphic calculator,pre algebra,pre calculus,absolute deviation,TI Nspire,TI 84 TI83 calculator tutorial,texas instruments calculator,grouped data,set theory,IIT JEE,AIEEE,GCSE,CAT,MAT,SAT,GMAT,MBBS,JELET,JEXPO,VOCLET,Indiastudychannel,IAS,IPS,IFS,GATE,B-Tech,M-Tech,AMIE,MBA,BBA,BCA,MCA,XAT,TOEFL,CBSE,ICSE,HS,WBUT,SSC,IUPAC,Narendra Modi,Sachin Tendulkar Farewell Speech,Dhoom 3,Arvind Kejriwal,maths revision,how to score good marks in exams,how to pass math exams easily,JEE 12th physics chemistry maths PCM,JEE maths shortcut techniques,quadratic equations,competition exams tips and ticks,competition maths,govt job,JEE KOTA,college math,mean value theorem,L hospital rule,tech guru awaaz,derivation,cryptography,iphone 5 fingerprint hack,crash course,CCNA,converting fractions,solve word problem,cipher,game theory,GDP,how to earn money online on youtube,demand curve,computer science,prime factorization,LCM & GCF,gauss elimination,vector,complex numbers,number systems,vector algebra,logarithm,trigonometry,organic chemistry,electrical math problem,eigen value eigen vectors,runge kutta,gauss jordan,simpson 1/3 3/8 trapezoidal rule,solved problem example,newton raphson,interpolation,integration,differentiation,regula falsi,programming,algorithm,gauss seidal,gauss jacobi,taylor series,iteration,binary arithmetic,logic gates,matrix inverse,determinant of matrix,matrix calculator program,sex in ranchi,sex in kolkata,vogel approximation VAM optimization problem,North west NWCR,Matrix minima,Modi method,assignment problem,transportation problem,simplex,k map,boolean algebra,android,casio FC 200v 100v financial,management mathematics tutorials,net present value NPV,time value of money TVM,internal rate of return IRR Bond price,present value PV and future value FV of annuity casio,simple interest SI & compound interest CI casio,break even point,amortization calculation,HP 10b financial calculator,banking and money,income tax e filing,economics,finance,profit & loss,yield of investment bond,Sharp EL 735S,cash flow casio,re finance,insurance and financial planning,investment appraisal,shortcut keys,depreciation,discounting
Views: 63860 Sujoy Krishna Das
3: Theory and Practice of Freedom of Expression
 
02:22:20
One of the thorniest faces of free speech debate is the tension between free expression as an abstract principle and kinds of speech that harm, such as hate speech, incitements to violence, or uses of information which can cause economic damage or threaten security or privacy. And technologies change how information can move, and harm. This week we put a historian of the earliest post-printing-press debates over free speech in dialog with a historian of the information practices of hate groups in America. Recorded October 19th, 2018
Computer Science Unplugged
 
50:21
Google Tech Talks October 18, 2006 Tim Bell is an Associate Professor in the department of Computer Science and Software Engineering at the University of Canterbury in Christchurch, New Zealand. His current research interests include Computers and Music, Public Understanding of (Computer) Science, and educational applications of podcasting. Credits: Speaker:Tim Bell
Views: 9698 GoogleTechTalks
Martin Hellman,  2015 ACM Turing Award Recipient
 
02:40:08
The Martin Hellman interview begins with an in-depth look at his ancestry, early life and education and the people who most influenced him. After describing his post secondary education and early research he gives an in-depth look at the research that resulted in the Turing Award. He explains why he retired at and early age to devote his energies to diplomatic and social causes. He explains how his marriage almost broke up because of is obsession with logic and it was only his wife’s persistence that has resulted in a happy home life. More Information: https://amturing.acm.org/award_winners/hellman_4055781.cfm
How To Find Antilog Using Scientific Calculators(Casio fx-991ES & fx-82MS)
 
03:47
Watch My Other Scientific Calculator Tutorials Below- http://goo.gl/uiTDQS Hi,I'm Sujoy. I make scientific calculator tutorials & math tutorials. Lots of my viewers asked me about how to find antilog on scientific calculators. So,I made this video telling how to find antilog on Casio fx-991ES and Casio fx-82MS scientific calculators. And basics of logarithm on Casio fx-991ES and Casio fx-82MS calculators. I've uploaded videos on Statistics,Numerical Methods, Business & Financial Mathematics,Operations Research,Computer Science,Electrical Engineering,Android Application Reviews,India Travel & Tourism,Street Foods,Life Hacks and many other topics. And a series of videos showing how to use your scientific calculators Casio fx-991ES & fx-82MS to do maths easily. Join me at my YouTube Channel- http://www.youtube.com/sujoyn70 Join me at my Blog- http://www.sujoyn70.blogspot.com Join me at IndiaStudyChannel- http://www.indiastudychannel.com/r/sujoy70.aspx Incoming Tags- z score statistics,find mean median mode statistics in ms excel,variance,standard deviation,linear regression,data processing,confidence intervals,average value,probability theory,binomial distribution,matrix,random numbers,error propagation,t statistics analysis,hypothesis testing,theorem,chi square,time series,data collection,sampling,p value,scatterplots,statistics lectures,statistics tutorials,business mathematics statistics,share stock market statistics in calculator,business analytics,GTA,continuous frequency distribution,statistics mathematics in real life,modal class,n is even,n is odd,median mean of series of numbers,math help,Sujoy Krishna Das,n+1/2 element,measurement of variation,measurement of central tendency,range of numbers,interquartile range,casio fx991,casio fx82,casio fx570,casio fx115es,casio 9860,casio 9750,casio 83gt,TI BAII+ financial,casio piano,casio calculator tricks and hacks,how to cheat in exam and not get caught,grouped interval data,equation of triangle rectangle curve parabola hyperbola,graph theory,operation research(OR),numerical methods,decision making,pie chart,bar graph,computer data analysis,histogram,statistics formula,matlab tutorial,find arithmetic mean geometric mean,find population standard deviation,find sample standard deviation,how to use a graphic calculator,pre algebra,pre calculus,absolute deviation,TI Nspire,TI 84 TI83 calculator tutorial,texas instruments calculator,grouped data,set theory,IIT JEE,AIEEE,GCSE,CAT,MAT,SAT,GMAT,MBBS,JELET,JEXPO,VOCLET,Indiastudychannel,IAS,IPS,IFS,GATE,B-Tech,M-Tech,AMIE,MBA,BBA,BCA,MCA,XAT,TOEFL,CBSE,ICSE,HS,WBUT,SSC,IUPAC,Narendra Modi,Sachin Tendulkar Farewell Speech,Dhoom 3,Arvind Kejriwal,maths revision,how to score good marks in exams,how to pass math exams easily,JEE 12th physics chemistry maths PCM,JEE maths shortcut techniques,quadratic equations,competition exams tips and ticks,competition maths,govt job,JEE KOTA,college math,mean value theorem,L hospital rule,tech guru awaaz,derivation,cryptography,iphone 5 fingerprint hack,crash course,CCNA,converting fractions,solve word problem,cipher,game theory,GDP,how to earn money online on youtube,demand curve,computer science,prime factorization,LCM & GCF,gauss elimination,vector,complex numbers,number systems,vector algebra,logarithm,trigonometry,organic chemistry,electrical math problem,eigen value eigen vectors,runge kutta,gauss jordan,simpson 1/3 3/8 trapezoidal rule,solved problem example,newton raphson,interpolation,integration,differentiation,regula falsi,programming,algorithm,gauss seidal,gauss jacobi,taylor series,iteration,binary arithmetic,logic gates,matrix inverse,determinant of matrix,matrix calculator program,sex in ranchi,sex in kolkata,vogel approximation VAM optimization problem,North west NWCR,Matrix minima,Modi method,assignment problem,transportation problem,simplex,k map,boolean algebra,android,casio FC 200v 100v financial,management mathematics tutorials,net present value NPV,time value of money TVM,internal rate of return IRR Bond price,present value PV and future value FV of annuity casio,simple interest SI & compound interest CI casio,break even point,comedy
Views: 336201 Sujoy Krishna Das
LZW coding 1
 
04:53
Created using PowToon -- Free sign up at http://www.powtoon.com/ . Make your own animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require.
Views: 183290 vaibhav kadam
【2016PITTCSSA春晚】PART1
 
10:40
BGM Credit: Aunt Tagonist - Silent Film Dark by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...) Source: http://incompetech.com/music/royalty-... Artist: http://incompetech.com/ Prelude No. 10 by Chris Zabriskie is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...) Source: http://chriszabriskie.com/preludes/ Artist: http://chriszabriskie.com/
Views: 786 PittCSSA
Crypto Defenses for Real-World System Threats - Kenn White - Ann Arbor
 
01:36:58
Modern encryption techniques provide several important security properties, well known to most practitioners. Or are they? What are in fact the guarantees of, say, HTTPS TLS cipher suites using authenticated encryption, IPSec vs. SSL VPNs, Property Preserving Encryption, or token vaults? We live in an era of embedded Hardware Security Modules that cost less than $1 in volume, and countless options now exist for encrypting streaming network data, files, volumes, and even entire databases. Let's take a deep dive into the edge of developed practice to discuss real-world threat scenarios to public cloud and IoT data, and look closely at how we can address specific technical risks with our current encryption toolkits. Advanced math not required. Bio: Kenneth White is a security researcher whose work focuses on networks and global systems. He is co-director of the Open Crypto Audit Project (OCAP), currently managing a large-scale audit of OpenSSL on behalf of the Linux Foundation's Core Infrastructure Initiative. Previously, White was Principal Scientist at Washington DC-based Social & Scientific Systems where he led the engineering team that designed and ran global operations and security for the largest clinical trial network in the world, with research centers in over 100 countries. White co-founded CBX Group which provides security services to major organizations including World Health, UNICEF, Doctors without Borders, the US State Department, and BAO Systems. Together with Matthew Green, White co-founded the TrueCrypt audit project, a community-driven initiative to conduct the first comprehensive cryptanalysis and public security audit of the widely used TrueCrypt encryption software. White holds a Masters from Harvard and is a PhD candidate in neuroscience and cognitive science, with applied research in real-time classification and machine learning. His work on network security and forensics and been cited by media including the Wall Street Journal, Forbes, Reuters, Wired and Nature. White is a technical reviewer for the Software Engineering Institute, and publishes and speaks frequently on computational modeling, security engineering, and trust. He tweets @kennwhite.
Views: 1142 Duo Security