Physics
The Heat Equation: Inhomogeneous Boundary Conditions
This is the third article in my series on partial differential equations. Before reading further you might want to read part one (9…
Panda the Red
Physics
The Heat Equation: Forcing
The inhomogeneous heat equation
Physics
The Heat Equation, explained
Your first PDE. Bonus: Fourier series.
Mathematics
Taylor’s Theorem
Approximating functions near points. It’s cooler than it sounds, trust me.
Mathematics
Relaxation Methods
An introduction to relaxation algorithms for applications in physics.
Physics
The Navier-Stokes Equations
Math for continuum mechanics, part 1.
Mathematics
Introduction to Group Theory
An introduction to abstract algebra with no prerequisites, and a computer science application.
Physics
Lagrangians
How to write down a theory
Mathematics
Maxwell’s Equations
A gentle introduction
Mathematics
What is Fractional Calculus?
“A paradox from which one day useful consequences will be drawn.” ~Gottfried Leibniz
Physics
Richard Feynman’s Integral Trick
Today’s article is going to discuss an obscure but powerful integration technique most commonly known as differentiation under the integral sign, but occasionally referred to as “Feynman’s technique” ...