Expressions

Expressions are built from floats, variables, operators, and functions. They evaluate to a Float.

Operators

• +: addition
• -: subtraction
• *: multiplication
• /: division
• (): parentheses for order of operations
• ==: equal; result 1 if true, 0 otherwise
• !=: not equal; 1 if true, 0 otherwise
• >, <, >=, <=: comparison; 1 if true, 0 otherwise

Functions

• sin(x), cos(x), tan(x): trig (radians)
• abs(x): absolute value
• exp(x): exponential
• atan2(x): arctangent
• ln(x): natural log
• sig(x): sign; 1 for +0 or positive, -1 for -0 or negative
• step(x, y): step; 1 if x < y, else 0
• floor(x), ceil(x), round(x): rounding
• max(x, y...), min(x, y...): max/min
• clamp(x, min, max): clamp x to [min, max]

Trig and inverse trig use radians.