Arithmetic, percent, rounding, gcd/lcm, factorization

Linear and quadratic equation solvers, polynomial helper

Numeric derivative, integrator and limits (POC)

Trig functions, deg/rad toggle, tables and identities

Matrix operations: determinant, inverse, multiply (small matrices)

Area, perimeter and volume calculators with common formulas

Mean, median, mode, variance, stddev and simple regressions

Primes, modular arithmetic, modular inverse

Simple function plotter (client-side)

Angle/unit converters: deg↔rad, DMS, grads