2021

an archive of posts from this year

Dec 14, 2021 Systems of Linear Difference Equations
Dec 13, 2021 Matrix Exponential Formulas for 2x2 Matrices
Dec 8, 2021 2x2 Matrix Exponential Formulas with Differential Equations
Dec 2, 2021 Solving systems of first-order ODEs like a baller
Nov 25, 2021 Shortcuts for Finding Eigenvalues and Eigenvectors
Oct 18, 2021 Easily Solving Autonomous IVPs Off the Origin
Oct 7, 2021 Introduction to Least Squares
Sep 27, 2021 Finding Taylor Series of Polynomials Using Synthetic Division
Sep 22, 2021 A Formula for Some Particular Solutions
Sep 13, 2021 Matrix Exponentials Using Differential Equations
Sep 9, 2021 Exact Equations Done Quick
Aug 16, 2021 Function Interpolation
Aug 3, 2021 Polynomial Interpolation
Jul 18, 2021 Intro To Solving Systems of First Order Differential Equations
Jun 24, 2021 Variation of Parameters Using Linear Algebra
Jun 20, 2021 Solving Second Order Systems of Differential Equations
May 22, 2021 Tricks for Remembering Laplace Transforms
May 22, 2021 Skipping Integration by Parts Using Euler's Formula
May 22, 2021 Introduction to Euler's Formula
May 17, 2021 Constructing Integer 2x2 Second Order Systems of Differential Equations with Integer Solutions
May 15, 2021 Constructing Integer 2x2 First Order Systems of Differential Equations with Integer Solutions
Apr 26, 2021 Matrix Exponential Formulas for 2x2 Matrices Using Laplace Transforms
Apr 20, 2021 Eigendecomposition of Real Matrices with Complex Eigenvalues
Feb 10, 2021 Solving Multiple Initial Value Problems with Normalized Solutions
Jan 16, 2021 Constructing 2x2 Markov Matrices
Jan 14, 2021 Linear Differential Equation Interpolation
Jan 8, 2021 Skew-Symmetric Matrices Are Cool
Jan 4, 2021 The Alpha Method (Generalized Exponential Response Formula)