exslt-math:log

Returns the natural logarithm of $arg.

log($arg as xs:double) ➔ xs:double

Arguments

 

$arg

xs:double

The input number

Result

xs:double

Namespace

http://exslt.org/math

Links to specifications

EXSLT Math Module

Saxon availability

Requires Saxon-PE or Saxon-EE. Available for Java and C/C++ only (not .NET).

Notes on the Saxon implementation

Saxon also implements the function math:log() in namespace http://www.w3.org/2005/xpath-functions/math.