Sometimes I do math, and sometimes I even get it right. Here are some math doodles and derivations I’ve made. Typically, I’m hastily trying to solve a quick problem; occasionally I explore an interesting topic.

## Math for Engineering

What do you mean, engineering isn’t just laser beams and robots?!

- Phase margin compensation using an op-amp lead-lag filter
- Laplace analysis of series RLC circuits
- Basics – the capacitor
- Calculus review – the derivative

## Interesting Problems

Here are a couple problems I found interesting and worked through.

## RMS Calculations

Here are some rough, back of the envelop derivations for the root-mean-square form factors of some common periodic waveforms.