Trigonometry Functions

FUNCTION	DEFINITION
acos	Arc cosine of x expressed in radians. Interval $[-1,+1]$ (eg: acos(x))
acosh	Inverse hyperbolic cosine of x expressed in radians. (eg: acosh(x))
asin	Arc sine of x expressed in radians. Interval $[-1,+1]$ (eg: asin(x))
asinh	Inverse hyperbolic sine of x expressed in radians. (eg: asinh(x))
atan	Arc tangent of x expressed in radians. Interval $[-1,+1]$ (eg: atan(x))
atan2	Arc tangent of $(x / y)$ expressed in radians. $[-\pi,+\pi]$ (eg: atan2(x,y))
atanh	Inverse hyperbolic tangent of $x$ expressed in radians. (eg: atanh(x))
cos	Cosine of $x$. (eg: cos(x))
cosh	Hyperbolic cosine of $x$. (eg: cosh(x))
cot	Cotangent of $x$. (eg: cot(x))
csc	Cosecant of $x$. (eg: csc(x))
sec	Secant of $x$. (eg: sec(x))
sin	Sine of $x$. (eg: sin(x))
sinc	Sine cardinal of $x$. (eg: sinc(x))
sinh	Hyperbolic sine of $x$. (eg: sinh(x))
tan	Tangent of $x$. (eg: tan(x))
tanh	Hyperbolic tangent of $x$. (eg: tanh(x))
deg2rad	Convert $x$ from degrees to radians. (eg: deg2rad(x))
deg2grad	Convert $x$ from degrees to gradians. (eg: deg2grad(x))
rad2deg	Convert $x$ from radians to degrees. (eg: rad2deg(x))
grad2deg	Convert $x$ from gradians to degrees. (eg: grad2deg(x))