- Work in progress.
- Line
- Triangle
- Rectangle
- Square
- Rhombus
- Parallelogram
- Trapezoid
- Pentagram
- Hexagram
- Circle
- Euclidean algorithm
- Extended Euclidean algorithm
- Bezout coefficients
- Heron
- Pythagoras
- Stirling
- Min, Max, Abs
- Euclidean, Manhattan norms
- Euler totient
- Common residue, least residue, congruence, equivalence classes
- Addition, subtraction, multiplication, exponentiation (multiply-reduce, square-multiply)
- Log (first discrete log)
- CRT
- PNT(Prime number theorem approx)
- Primality & compositeness (Trial-division, Fermat, Miller-Rabin)
- Birthday paradox