sin(x)				Sine
cos(x)				Cosine
tan(x)				Tangent
---------------------------------------------------------------------------
acos(x), arccos(x)		Arccosine
asin(x), arcsin(x)		Arcsine
atan(x), arctan(x)		Arctangent
atan2(n,d)			Arctangent of [n]/[d]
---------------------------------------------------------------------------
sinh(x)				Hyperbolic sine
cosh(x)				Hyperbolic cosine
tanh(x)				Hyperbolic tangent
---------------------------------------------------------------------------
ln(x), log(x)			Natural logarithm
lg(x), log10(x)			Base-10 logarithm
lb(x), ld(x)			Base-2 logarithm
exp(x)				e^x
pow(a,x)			a^x
---------------------------------------------------------------------------
sqr(x)				Square
sqrt(x)				Square root
abs(x)				Absolute value
ceil(x)				Ceiling
floor(x), int(x)		Floor / Integer
---------------------------------------------------------------------------
deg(r)				Degree from radiant
rad(d)				Radiant from degree
---------------------------------------------------------------------------
mod(a,b)			Floating point remainder
sgn(x), sign(x)			Sign {-1; 0; 1}
rnd(), rand()			Random in [0..1]
time()				Unix timestamp
---------------------------------------------------------------------------
max(...)			Maximum
min(...)			Minimum
mean(...), avg(...)		Arithmetic mean (average)
var(...), mse(...)		Variance / mean square error
stdev(...), rmse(...)		Standard deviation / root mean square error
---------------------------------------------------------------------------
equal(a,b)			[a]==[b]
above(a,b)			[a]>[b]
below(a,b)			[a]<[b]
cmp(a,b)			cmp(a,b) := sign(a-b)
---------------------------------------------------------------------------
if(c,y,n), ite(c,y,n)		if-then-else
band(a,b)			Boolean AND
bor(a,b)			Boolean OR
bnot(x)				Boolean NOT
---------------------------------------------------------------------------
e				2.718281828
pi				3.141592653
true				1.0
false				0.0