12 basic functions

identity function

f(x) = x

Squaring function

f(x) = x²

cubing function

f(x) = ax³+bx²+cx+d

reciprocal function

f(x) = 1/x

square root function

f(x) = √x

absolute value

f(x) = |x|

exponential function

f(x) = e^x

natural logarithm

f(x) = lnx

logistic function

f(x) = 1/(1+e^-x)

greatest integer function

f(x) = ⌊x⌋

sine function

f(x) = sin(x)

cosine function

f(x) = cos(x)