Operators

Op.	Desc.
NUM := - NUM	Floating point negation
NUM := NUM + NUM	Floating point addition
NUM := NUM - NUM	Floating point subtraction
NUM := NUM * NUM	Floating point multiplication
NUM := NUM / NUM	Floating point division. Divide by zero will trigger a parser error.

Op.	Desc.
NUM := sin(NUM)	Floating point trig. functions
NUM := cos(NUM)
NUM := tan(NUM)
NUM := asin(NUM) or arcsin(NUM)
NUM := acos(NUM) or arccos(NUM)
NUM := atan(NUM) or arctan(NUM)

Op.	Desc.
NUM := rad2deg(NUM)	Convert between radians and degrees
NUM := deg2rad(NUM)

Op.	Desc.
STR = file(STR)	Normalize file path. Accepts a possibly relative path, returns the canonical path (no '.' or '..')
STR = h5file(STR)	Normalize h5file path. same as file() while also ignoring any trailing "/group/name".