B - numerical methods

B1 - representing continuous functions and derivatives
B2 - convergence
B3 - local truncation error
B4 - discretising heat equation PDEs
B5 - implicit methods
B6a - advection equation
B6b - finite difference
B6c - upwinding
B7 - boundary conditions
B8 - 2D boundary value problem

review from youtube

B9 - numerical differentiation
B10 - numerical integration
B11 - numerical integration of ODEs
B12 - varying diffusion coefficients

x - working with vonneumann
x1 - code for difference schemes comparison
x2 - code for transforming indices
x3 - compactly storing banded matrices