Numeric functions

Numeric functions are used to transform and manipulate numeric types. Common functions that have been implemented so far are listed below.

Function	Description	Example	Result
`abs(x)`	returns the absolute value of x	`abs(-25.2)`	`25.2`
`acos(x)`	returns the arccosine of x	`acos(0.43)`	`1.126304`
`asin(x)`	returns the arcsine of x	`asin(0.4)`	`0.411517`
`atan(x)`	returns the arctangent of x	`atan(0.221)`	`0.217504`
`atan2(x, y)`	returns the arctangent of x, y	`atan2(0.4, 0.2)`	`0.342411`
`bitwise_xor(x, y)`	returns the bitwise xor of x and y	`bitwise_xor(2, 3)`	`1`
`ceil(x)`	rounds up x to the next nearest integer	`ceil(4.2)`	`5.0`
`ceiling(x)`	alias of ceil	`ceiling(3.27)`	`4.0`
`cos(x)`	returns the cosine value of x	`cos(2.79)`	`-0.938825`
`cot(x)`	returns the cotangent of x	`cot(0.78)`	`1.010855`
`degrees(x)`	converts radians to degree	`degrees(1.2534)`	`71.814530`
`even(x)`	rounds to next even number by rounding away from 0	`even(3.4)`	`4`
`factorial(x)`	returns the factorial of x	`factorial(4)`	`24`
`floor(x)`	rounds down x to the nearest integer	`floor(3.3)`	`3`
`gamma(x)`	interpolation of (x-1) factorial	`gamma(2.4)`	`1.242169`
`lgamma(x)`	returns the log of gamma(x)	`lgamma(1.4)`	`-0.119613`
`ln(x)`	returns the natural logarithm of x	`ln(2.11)`	`0.746688`
`log(x)`	returns the 10-log of x	`log(2.11)`	`0.324282`
`log2(x)`	returns the 2-log of x	`log2(3)`	`1.584963`
`log10(x)`	alias of log(x)	`log10(100)`	`2`
`negate(x)`	returns the opposite number of x	`negate(100)`	`-100`
`pi()`	returns the value of pi	pi()	`3.141593`
`pow(x, y)`	returns the value of x to the power of y	`pow(4, 5)`	`1024`
`radians(x)`	converts the degree to radians	`radians(89)`	`1.553343`
`round(x, s)`	rounds x to s decimal places	`round(42.651, 1)`	`42.700000`
`sin(x)`	returns the sin of x	`sin(413.31)`	`-0.981897`
`sign(x)`	returns the sign of x	`sign(-451`)	`-1`
`sqrt(x)`	returns the square root of x	`sqrt(4.25)`	`2.061553`
`tan(x)`	returns the tangent of x	`tan(75)`	`-0.420701`