Basic Functions

cos : cosin of an angle (in radians)
sin : sin of an angle (in radians)
tan : tan of an angle (in radians)
exp : exponential function
log : natural logarithm
log10 : logarithm to base 10
sinh : hyperbolic sine
cosh : hyperbolic cosine
tanh : hyperbolic tanh
acos : inverse cosine
asin : inverse sine
atan : inverse tan
atan2 : two-argument form of inverse tan
atanh : inverse tanh

abs
sign
round : round to the nearest integer
floor : round down (towards minus infinity)
ceil : round up (towards plus infnity)
fix : round towards zero
rem : remainder after integer division