XQuery Function Documentation

http://www.w3.org/2005/xpath-functions/math

java:org.exist.xquery.functions.math.MathModule

A module containing functions for common mathematical operations.

math:acos#1

math:acos($arg as xs:double?) as xs:double

Returns the arc cosine of the argument, the result being in the range zero to +π radians.

Parameters:

$arg	The input number

Returns:

xs:double? : the result

math:asin#1

math:asin($arg as xs:double?) as xs:double

Returns the arc sine of the argument, the result being in the range -π/2 to +π/2 radians.

Parameters:

$arg	The input number

Returns:

xs:double? : result

math:atan#1

math:atan($arg as xs:double?) as xs:double

Returns the arc tangent of the argument, the result being in the range -π/2 to +π/2 radians.

Parameters:

$arg	The input number

Returns:

xs:double? : the result

math:atan2#2

math:atan2($y as xs:double, $x as xs:double) as xs:double

Returns the angle in radians subtended at the origin by the point on a plane with coordinates (x, y) and the positive x-axis, the result being in the range -π to +π.

Parameters:

$y	The y coordinate
$x	The x coordinate

Returns:

xs:double : the theta component of the point (r, theta) in polar coordinates that corresponds to the point (x, y) in Cartesian coordinates.

math:cos#1

math:cos($arg as xs:double?) as xs:double

Returns the cosine of the argument, expressed in radians.

Parameters:

$arg	The input number

Returns:

xs:double? : the cosine

math:exp#1

math:exp($arg as xs:double?) as xs:double

Calculates e (the Euler Constant) raised to the power of $arg

Parameters:

$arg	The input number

Returns:

xs:double? : e (the Euler Constant) raised to the power of a value or expression

math:exp10#1

math:exp10($arg as xs:double?) as xs:double

Calculates 10 raised to the power of $arg

Parameters:

$arg	The input number

Returns:

xs:double? : e (the Euler Constant) raised to the power of a value or expression

math:log#1

math:log($arg as xs:double?) as xs:double

Returns the natural logarithm of the argument.

Parameters:

$arg	The input number

Returns:

xs:double? : the log

math:log10#1

math:log10($arg as xs:double?) as xs:double

Returns the base-ten logarithm of the argument.

Parameters:

$arg	The input number

Returns:

xs:double? : the log

math:pi#0

math:pi() as xs:double

Returns the value of pi.

Returns:: xs:double : the value of pi

math:pow#2

math:pow($value as xs:double?, $power as xs:numeric) as xs:double

Returns the result of raising the first argument to the power of the second.

Parameters:

$value	The value
$power	The power to raise the value to

Returns:

xs:double? : the result

math:sin#1

math:sin($arg as xs:double?) as xs:double

Returns the sine of the argument, expressed in radians.

Parameters:

$arg	The input number

Returns:

xs:double? : the sine

math:sqrt#1

math:sqrt($arg as xs:double?) as xs:double

Returns the non-negative square root of the argument.

Parameters:

$arg	The input number

Returns:

xs:double? : the square root of $x

math:tan#1

math:tan($arg as xs:double?) as xs:double

Returns the tangent of the argument, expressed in radians.

Parameters:

$arg	The radians

Returns:

xs:double? : the tangent