Math library functions
Function	Arguments	Returns
abs(x)	any	absolute value of x, same type
abs(x)	complex	length of x = sqrt(x_real * x_real + x_imag * x_imag)
acos(x)	any	inverse cosine
acosh(x)	any	inverse hyperbolic cosine, in radians
arg(x)	complex	the phase of x
asin(x)	any	inverse sin
asinh(x)	any	inverse hyperbolic sin, in radians
atan(x)	any	inverse tangent
atan2(y,x)	int or real	inverse tangent
atanh(x)	any	inverse hyperbolic tangent, in radians
besj0(x)	int or real	Bessel function of x, in radians
besj1(x)	int or real	Bessel function of x, in radians
besy0(x)	int or real	Bessel function of x, in radians
besy1(x)	int or real	Bessel function of x, in radians
ceil(x)	any	smallest integer not less than x (real part)
cos(x)	any	cosine of x
cosh(x)	any	hyperbolic cosine of x in radians
erf(x)	any	error function of real(x)
erfc(x)	any	1.0 - error function of real(x)
exp(x)	any	exponential function of x
floor(x)	any	largest integer not greater than x (real part)
gamma(x)	any	gamma function of real(x)
ibeta(p,q,x)	any	ibeta function of real(p,q,x)
inverf(x)	any	inverse error function of real(x)
igamma(a,x)	any	igamma function of real(a,x)
imag(x)	complex	imaginary part of x as a real number
invnorm(x)	any	inverse normal distribution function of real(x)
int(x)	real	integer part of x, truncated toward zero
lambertw(x)	real	Lambert W function
lgamma(x)	any	lgamma function of real(x)
log(x)	any	natural logarithm (base e) of x
log10(x)	any	logarithm (base 10) of x
norm(x)	any	normal distribution (Gaussian) function of real(x)
rand(x)	any	pseudo random number generator
real(x)	any	real part of x
sgn(x)	any	1 if x>0, -1 if x<0, 0 if x=0. imag(x) ignored
sin(x)	any	sine of x
sinh(x)	any	hyperbolic sine of x in radians
sqrt(x)	any	square root of x
tan(x)	any	tangent of x
tanh(x)	any	hyperbolic tangent of x in radians