random()

Returns a random 32-bit integer.

abs(value)

Returns the absolute value of the given number.

sq(value)

sqrt(value)

Calculates the square of a value and the square root of a value.

log(value)

Calculates the natural logarithm of the given value.

cos(value)

sin(value)

tan(value)

Computes the trigonometric cosine, sine or tangent of the given angle in radians.

max(a,b)

min(a,b)

Returns the minimum or the maximum out of the given values.

constrain(value, min, max)

Constrains the value so it’s always within the min-max range.

map(value, fromLow, fromHigh, toLow, toHigh)

Re-maps a number from one range to another. That is, a value of fromLow would get mapped to toLow, a value of fromHigh to toHigh, values in-between to values in-between, etc.

round(value)

floor(value)

ceil(value)

Rounds the given number to the closest integer.

The floor function rounds it always down while ceil rounds it always up.