Expression 
Expressions are used to define calculations used for different purposes. They can have variables to allow more advanced configuration.
Constants 
- pi- returns ratio of the circumference of a circle to its diameter
- tau- returns ratio of the circumference of a circle to its radius
- e- return the Euler's number
Operators 
- x + y- add
- x - y- subtract
- x * y- multiply
- x / y- divided
- x ^ y- exponentiation
- -x- negation
- x & y- and
- x | y- or
- !x- not
- <- less than
- <=- less than or equal
- >- greater than
- >=- greater than or equal
- =- equal
- <>- not equal
Functions 
- sin(x)- returns the sine of a number in radians
- cos(x)- returns the cosine of a number in radians
- tan(x)- returns the tangent of a number in radians
- asin(x)- returns the inverse sine (in radians) of a number
- acos(x)- returns the inverse cosine (in radians) of a number
- atan(x)- returns the inverse tangent (in radians) of a number
- sinh(x)- returns the hyperbolic sine of a number
- cosh(x)- returns the hyperbolic cosine of a number
- tanh(x)- returns the hyperbolic tangent of a number
- log(x)- returns the natural logarithm (base e) of a number
- exp(x)- returns e raised to the power of a number
- sqrt(x)- returns the square root of a number
- cbrt(x)- returns the cube root of a number
- floor(x)- returns the largest integer smaller than or equal to the input
- ceil(x)- returns the smallest integer greater than or equal to the input
- round(x)- returns the value of a number rounded to the nearest integer
- trunc(x)- returns the integer part of a number by removing any fractional digits
- abs(x)- returns the absolute value of a number
- sign(x)- returns -1 if the number is less than 0, 1 if the number is greater than 0, and 0 if the number is 0
- fract(x)- returns the fractional part of a number
- mod(x, y)- returns the value of modulo of two numbers
- mix(x, y, t)- returns the linear interpolation between two values
- clamp(x, min, max)- returns a value constrained between two further values
- min(x, y, z, ...)- returns the smallest of the numbers given as input
- max(x, y, z, ...)- returns the largest of the numbers given as input