atan2
Math.atan2(x, y) // x, y are the coordinates of the
point
Computes the counter-clockwise angle from the positive X axis to a
point (x, y). Performs half of the conversion between Cartesian coordinates
and polar coordinates; computes and returns the angle theta of an (x, y)
point.
ceil
Math.ceil(x) // x is any number or numeric expression
Rounds a number up to the closest integer (i.e., computes the ceiling
function); negative numbers are rounded up to 0.
cos
Math.cos(x) // x is any number or numeric expression, in
radians
Computes a cosine; the return value will be between -1.0 and 1.0 radians.
exp
Math.exp(x) // x is a number or numeric expression to be
used as exponent
Computes an exponent of $e$.
floor
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