Writing Scripts in Nashorn - Scripting in Java: Integrating with Groovy and JavaScript - page 148

Table 4-14. ( continued )

Property/Method Description

Math.acos(x),
Math.asin(x),
Math.atan(x)

Returns arc cosine, arc sine, and arc tangent of x

Math.atan(y, x) Returns the arc tangent of the quotient y/x of the arguments y and

x , where the signs of y and x are used to determine the quadrant of
the result

Math.ceil(x)

Returns the closest integer that is greater than or equal to x

Math.cos(x),
Math.sin(x),
Math.tan(x)

Returns cosine, sine, and tangent of x

Math.exp(x) Returns e raised to the power of x, where e is Math.E

Math.floor(x) Returns the closest integer that is less than or equal to x

Math.log(x)

Returns the natural logarithm of x. That is, computes the logarithm
of x base- e

Math.max(v1,
v2,...)

Returns the maximum of all arguments v1 , v2 , and so on,
converting the arguments to Number type if necessary. If no
arguments are passed, -Infinity is returned

Math.min(v1,
v2,...)

Returns the minimum of all arguments v1 , v2 , and so on,
converting the arguments to Number type if necessary. If no
arguments are passed, Infinity is returned

Math.pow(x, y) Returns the result of raising x to the power y

Math.random() Returns a random number between 0 (inclusive) and 1 (exclusive)

Math.round(x) Returns an integer closed to x . If two integers are equally close,

returns the integer that is closer to +Infinity . For example,
Math.round(2.3) returns 2, Math.round(2.9) returns 3, and Math.
round(2.5) returns 3

Math.sqrt(x)

Returns the square root of x

The RegExp Object
A regular expression represents a pattern in input text. The RegExp object is a function.
It represents a regular expression and contains several methods and properties to match
the pattern in input text. RegExp can be used as a function or a constructor. Its signature is:

RegExp(pattern, flags)