Calculate:
2+3*4 sqrt(144) sin(pi/4)
2^10 abs(-5) log(100)
x=42 stores variable

Factor:
120 → prime factors
3628800 → 10!

Solve (linear/quadratic):
2x+3=7 x^2-5x+6=0
3x+2y=7, x-y=1 (system)

Derivative:
x^3+2x → 3x²+2
sin(x)*x^2

Integral:
x^2 → x³/3+C
3x^2+1

Graph:
x^2 sin(x) x^3-3x
Multiple: sin(x),cos(x),x/3

Stats:
1,2,3,4,5 → mean, median, std, etc.

Matrix:
[[1,2],[3,4]] determinant, trace, transpose
[[1,2],[3,4]]*[[5,6],[7,8]] multiply

Base Conversion:
255 0xFF 0b1010 0o77

Operators:
+ - * / ^ % ! (factorial)
Constants: pi e phi tau