Math functions

Math functions perform mathematical operations on your data.

This table describes the math functions that Transform supports.

User Function	Return Data Type	Description
`abs(double d)` `abs(float f)` `abs(int i)` `abs(long l)`	`double` `float` `int` `long`	Calculates the argument's absolute value.
`acos(double d)`	`double`	Calculates the arccosine of a double. The returned angle is between `0.0` and `pi`.
`asin(double d)`	`double`	Calculates the arcsine of a double. The returned angle is between `-pi/2` and `pi/2`.
`atan(double d)`	`double`	Calculates the arctangent of a double. The returned angle between `-pi/2` and `pi/2`.
`atan2(double y, double x)`	`double`	Calculates the angle theta from the conversion of rectangular coordinates `(x,y)` to polar coordinates `(r,theta)`.
`cbrt(double d)`	`double`	Calculates the cube root of a double.
`ceil(double d)`	`double`	Returns the smallest (i.e., closest to negative infinity) double value that is greater than or equal to the argument, and is equal to a mathematical integer.
`copySign(double a, double b)` `copySign(float a, float b)`	`double` `float`	Returns the first floating-point argument with the sign of the second floating-point argument.
`cos(double a)`	`double`	Calculates the trigonometric cosine of an angle.
`cosh(double d)`	`double`	Calculates the hyperbolic cosine of a double.
`exp(double d)`	`double`	Returns Euler's number e raised to the power of a double value.
`expm1(double x)`	`double`	Returns `e^x-1`.
`floor(double d)`	`double`	Returns the largest (i.e., closest to positive infinity) double value that is less than or equal to the argument, and is equal to a mathematical integer.
`getExponent(double d)`	`int`	Returns the unbiased exponent used in the representation of a double.
`hypot(double x, double y)`	`double`	Returns `sqrt(x² + y²)` without intermediate overflow or underflow.
`log(double d)`	`double`	Returns the natural logarithm (base e) of a double.
`log10(double d)`	`double`	Returns the base 10 logarithm of a double.
`log1p(double d)`	`double`	Returns the natural logarithm of the sum of a double and 1.
`max(double a, double b)` `max(float a, float b)` `max(int a, int b)` `max(long a, long b)`	`double` `float` `int` `long`	Returns the greater of the two arguments.
`min(double a, double b)` `min(float a, float b)` `min(int a, int b)` `min(long a, long b)`	`double` `float` `int` `long`	Returns the lesser of the two arguments.
`nextAfter(double a, double b)` `nextAfter(float a, double b)`	`double` `float`	Returns the floating-point number adjacent to the first argument in the direction of the second.
`nextUp(double a)` `nextUp(float a)`	`double` `float`	Returns the floating-point value adjacent to the argument in the direction of positive infinity.
`pow(double a, double b)`	`double`	Returns the value of the first argument raised to the power of the second.
`rint(double a)`	`double`	Returns the double value that is closest in value to the argument and is equal to a mathematical integer.
`random()`	`double`	Returns a positive double value that is greater than or equal to 0.0 and is less than 1.0.
`round(double a)` `round(float a)`	`long` `int`	Returns the closest value to the argument, with ties rounding up.
`roundWithPrecision(double a, int b)`	`double`	Rounds `a` with the precision defined by `b`.
`scalb(double a, int b)` `scalb(float a, int b)`	`double` `float`	Returns `a × 2^b` rounded as if performed by a single, correctly-rounded floating-point multiply to a member of the float value set.
`signum(double a)` `signum(float a)`	`double` `float`	Returns the signum of the argument: 0 if the argument is 0, 1.0 if the argument is greater than 0, -1.0 if the argument is less than 0.
`sin(double a)`	`double`	Calculates the trigonometric sine of an angle.
`sinh(double a)`	`double`	Calculates the hyperbolic sine of the argument.
`sqrt(double a)`	`double`	Calculates the correctly-rounded positive square root of the argument.
`tan(double a)`	`double`	Calculates the trigonometric tangent of an angle.
`tanh(double a)`	`double`	Calculates the hyperbolic tangent of `a`.
`toRadians(double angle)`	`double`	Converts an angle measured in degrees to an approximately equivalent angle measured in radians.
`truncateNumber(double number, int precision)`	`double`	Truncates a number using the specified precision.
`ulp(double a)` `ulp(float a)`	`double` `float`	Returns the size of a ULP of the argument.