This talk was presented as a part of the egg-paratha series (2021) for weekly discussions on computational physics.

The talk covers basic ideas of finite difference methods to represent and work with derivatives numerically in a computer simulation. It was meant to serve as a primer to attempt simulating the wave equation. [Video] [Slides]

Note: This was my first talk ever after getting into my undergraduate program, and it is riddled with errors all the way from incorrect orders of derivative errors upto missing ‘dx’ terms in places. However, I think the main ideas of the talk are still conveyed, so I have left the video up. But if you are watching it, do proceed with some healthy skepticism (as one always should!).