Every so often I have to make this. For traditional spirals, set N to a constant, and the angle shift to a multiple of x. Experiment with other functions for both for interesting effects. The points control the center and spacing.
LR1-01-CYU2 (Solving two-step equations)
Wag the dog- Harmonic Oscillator
Flux & Circulation: Circle & Square
Unit vectors, basis vectors and span
Linear Programming or Linear Optimization