Null space of a matrix example
In today's lecture I work through an example to show you a well-known pitfall when it comes to the null space of a matrix. In the example I show you how to create the special cases and how to use them to represent the null space. There is also a quick look at the NullSpace function in Ma
From playlist Introducing linear algebra
In this video I start to discuss the idea of the null space of a matrix. In these situations, the right-hand side of all the equations in the linear system is equal to zero. There is the trivial solution, where all the elements of the solution is zero. We are more interested in the spec
From playlist Introducing linear algebra
Definitions of null space, injectivity, range, and surjectivity. Fundamental theorem of linear maps. Consequences for systems of linear equations.
From playlist Linear Algebra Done Right
Finding a basis for Nul(A), the nullspace/kernel of A, by row-reducing Check out my Matrix Algebra playlist: https://www.youtube.com/playlist?list=PLJb1qAQIrmmAIZGo2l8SWvsHeeCLzamx0 Subscribe to my channel: https://www.youtube.com/channel/UCoOjTxz-u5zU0W38zMkQIFw
From playlist Matrix Algebra
From playlist Unlisted LA Videos
In this video we finish with three more example of calculating the null space of a matrix. These three example help us gain an even deeper insight into the null space by consider how many special cases we will get. Remember that the linear combinations of the special cases give us the nu
From playlist Introducing linear algebra
Null space of a matrix using sympy
In this video I give a brief overview of the null space of a matrix and how to calculate (y hand) the column vectors that will make up the null space of the column. This becomes much easier in sympy, by simply using the nullspace function. If you want to learn more about the null space o
From playlist Modern linear algebra using Python instead of a textbook
Warzone RAT Config Extraction With Python and IDA Pro
Join us as we build a configuration extractor for Warzone Rat! Expand for more details.... ----- OALABS DISCORD https://discord.gg/6h5Bh5AMDU OALABS PATREON https://www.patreon.com/oalabs OALABS TIP JAR https://ko-fi.com/oalabs OALABS GITHUB https://github.com/OALabs UNPACME - AUTOMA
From playlist Open Analysis Live!
Week 2: Friday - CS50 2007 - Harvard University
Functions, continued. Global variables. Parameters. Return values. Stack. Frames. Scope. Arrays. Strings. Command-line arguments. Cryptography.
From playlist CS50 Lectures 2007
From playlist CS50 Sections 2012
NOTACON 8: SSL Wars - The Dark Side of SSL
Speaker: Darth Vader The Rebel Alliance uses SSL to encrypt their transmissions so that the empire does not find the location of their secret base. In order to defeat the Rebel Alliances Darth Vader has studied SSL extensively to learn how it can be bypassed to listen to rebel transmissio
From playlist Notacon 8
Null Space and Column Space of a Matrix
Given a matrix A(ie a linear transformation) there are several important related subspaces. In this video we investigate the Nullspace of A and the column space of A. The null space is the vectors that are "killed" by the transformation - ie sent to zero. The column space will be the image
From playlist Older Linear Algebra Videos
DEFCON 19: Speaking with Cryptographic Oracles
Speaker: Daniel Crowley Application Security Consultant, Trustwave - SpiderLabs Cryptography is often used to secure data, but few people have a solid understanding of cryptography. It is often said that if you are not strictly a cryptographer, you will get cryptography wrong. For that ma
From playlist DEFCON 19
Live Coding A Squirrelwaffle Malware Config Extractor
Join us as we reverse engineer Squirrelwaffle and write a config extractor for it in python. Expand for more ... ----- OALABS DISCORD https://discord.gg/6h5Bh5AMDU OALABS PATREON https://www.patreon.com/oalabs OALABS TIP JAR https://ko-fi.com/oalabs OALABS GITHUB https://github.com/OAL
From playlist Open Analysis Live!
DEFCON 19: Steganography and Cryptography 101
Speaker: eskimo There are a lot of great ways to hide your data from prying eyes this talk will give a crash course in the technology and some tools that can be used to secure your data. Will also discuss hiding your files in plain site so an intruder will have no idea that hidden files
From playlist DEFCON 19
0057 - C++ Programming: Using certificates with TLS
This is #57 in my series of live (Twitch) coding streams, working on writing my own web server and service framework in C++. This stream I added certificate, private key, and server mode support to the TlsDecorator class, which I wrote to add a secure layer using Transport Layer Security
From playlist Excalibur
PHP Interview Questions and Answers | PHP Tutorial | PHP Certification Training | Edureka
** PHP & MySQL with MVC Frameworks Certification Training: https://www.edureka.co/php-mysql-self-paced This Edureka video on "PHP Interview Questions" will help you to prepare yourself for PHP Interviews ( PHP Interview Questions Blog: https://www.edureka.co/blog/interview-questions/php-in
From playlist PHP & MySQL Tutorial Videos
Week 2: Wednesday - CS50 2008 - Harvard University
Functions, continued. Global variables. Parameters. Return values. Stack. Frames. Scope. Arrays. Strings. Command-line arguments. Cryptography.
From playlist CS50 Lectures 2008
Linear ODE with Constant Coefficients: The Homogenized Equation
https://bit.ly/PavelPatreon https://lem.ma/LA - Linear Algebra on Lemma http://bit.ly/ITCYTNew - Dr. Grinfeld's Tensor Calculus textbook https://lem.ma/prep - Complete SAT Math Prep
From playlist Partial Differential Equations