Computational Physics Lecture 11, LU Decomposition and Matrix Inversion
In this lecture, we discuss the LU decomposition method for systems of linear algebraic equations. We then describe how to calculate the inverse of a matrix using this method. We also introduce the concept of the matrix condition number. Finally, we describe a simple iterative method for i
From playlist Nazarbayev: PHYS 270 - Computational Physics with Ernazar Ab
Russian Multiplication Algorithm - Intro to Algorithms
This video is part of an online course, Intro to Algorithms. Check out the course here: https://www.udacity.com/course/cs215.
From playlist Introduction to Algorithms
Complex Analysis: Integral Representations of Binomial Coefficients
Today, we derive some contour integral representations for the binomial coefficients. Residues at higher order poles: https://www.youtube.com/watch?v=9hdZDHkKoAM Egorychev method: https://en.wikipedia.org/wiki/Egorychev_method
From playlist Complex Analysis
Russian Multiplication Algorithm Solution - Intro to Algorithms
This video is part of an online course, Intro to Algorithms. Check out the course here: https://www.udacity.com/course/cs215.
From playlist Introduction to Algorithms
Least squares method for simple linear regression
In this video I show you how to derive the equations for the coefficients of the simple linear regression line. The least squares method for the simple linear regression line, requires the calculation of the intercept and the slope, commonly written as beta-sub-zero and beta-sub-one. Deriv
From playlist Machine learning
Russian Peasants Algorithm - Intro to Algorithms
This video is part of an online course, Intro to Algorithms. Check out the course here: https://www.udacity.com/course/cs215.
From playlist Introduction to Algorithms
The Stepanov Method - Avi Wigderson
Avi Wigderson Institute for Advanced Study May 25, 2010 The Stepanov method is an elementary method for proving bounds on the number of roots of polynomials. At its core is the following idea. To upper bound the number of roots of a polynomial f(x) in a field, one sets up an auxiliary pol
From playlist Mathematics
[Calculus] Newton's Method || Lecture 36
Visit my website: http://bit.ly/1zBPlvm Subscribe on YouTube: http://bit.ly/1vWiRxW Hello, welcome to TheTrevTutor. I'm here to help you learn your college courses in an easy, efficient manner. If you like what you see, feel free to subscribe and follow me for updates. If you have any que
From playlist Calculus 1
Dirichlet Eta Function - Integral Representation
Today, we use an integral to derive one of the integral representations for the Dirichlet eta function. This representation is very similar to the Riemann zeta function, which explains why their respective infinite series definition is quite similar (with the eta function being an alte rna
From playlist Integrals
RubyConf 2021 - Control methods like a pro: A guide to Ruby's awesomeness, ... by Masafumi Okura
Control methods like a pro: A guide to Ruby's awesomeness, a.k.a. metaprogramming by Masafumi Okura Do you know that methods are objects in Ruby? We can manipulate method objects just like other object, meaning that we can store them in variables, get information from them and wrap them i
From playlist RubyConf 2021
RubyConf 2015 - Messenger: The (Complete) Story of Method Lookup by Jay McGavren
Messenger: The (Complete) Story of Method Lookup by Jay McGavren You call a method on an object, and it invokes the instance method defined on the class. Simple. Except when the method isn't on the class itself, because it's inherited from a superclass. Or a singleton class, mixin, or ref
From playlist RubyConf 2015
RubyConf 2015 - Ruby 2 Methodology by Akira Matsuda
Ruby 2 Methodology by Akira Matsuda This talk focuses on "Method" in Ruby. Although Method is the key feature of an OOP language like Ruby, Ruby's Method is still drastically evolving. This session is a quick tour on new features and changes around Method in recent versions of the Ruby l
From playlist RubyConf 2015
RubyConf 2016 - Metaprogramming? Not good enough! by Justin Weiss
RubyConf 2016 - Metaprogramming? Not good enough! by Justin Weiss If you know how to metaprogram in Ruby, you can create methods and objects on the fly, build Domain Specific Languages, or just save yourself a lot of typing. But can you change how methods are dispatched? Can you decide th
From playlist RubyConf 2016
The Revenge of method_missing()
Convinced that nobody can bully method_missing() and get away with it, Nusco resolved to present a talk about it. When is method_missing() appropriate, and when should you pick an alternative metaprogramming magic spell instead? Is method_missing() really dangerous? What are the common met
From playlist Madison Ruby 2012
[Rust Programming] Crafting Interpreters: Day 37, Chapter 28 (Part 1)
In this video we continue to look at the Crafting Interpreters book, and learn how to port it to Rust. Since I'm a Rust beginner, the intent is that it will help me learn the language more in-depth than before. The book: https://craftinginterpreters.com/contents.html We're getting close
From playlist Rust Ports
Madison Ruby 2012 - The Revenge of method_missing()
The Revenge of method_missing() by: Paolo Perrotta Convinced that nobody can bully method_missing() and get away with it, Nusco resolved to present a talk about it. When is method_missing() appropriate, and when should you pick an alternative metaprogramming magic spell instead? Is metho
From playlist Madison Ruby 2012
The Fourier Transform and Derivatives
This video describes how the Fourier Transform can be used to accurately and efficiently compute derivatives, with implications for the numerical solution of differential equations. Book Website: http://databookuw.com Book PDF: http://databookuw.com/databook.pdf These lectures follow
From playlist Fourier
RubyConf 2015 - Extremely Defensive Coding by Sam Phippen
Extremely Defensive Coding by Sam Phippen Defensive programming is one of those abstract ideas that seems great but is often unclear in practice. In this talk we'll look at some of the extremely defensive patterns that have been driven out in RSpec through the years. We'll look at buildi
From playlist RubyConf 2015