# EXSLT - Math - Implementer Page

Version: 1 User Page: index.html XML Definition: math.xml Module Package: math.zip EXSLT - Math covers extension elements and functions that provide facilities to do with maths. The extension elements and functions defined within this document are governed by the general rules about extensions to XSLT covered in [14. Extensions] in [XSLT 1.0]. XSLT processors are free to support any number of the extension elements and functions described in this document. However, an XSLT processor must not claim to support EXSLT - Math unless all the core extensions described within this document are implemented by the processor. An implementation of an extension element or function in an EXSLT namespace must conform to the behaviour described in this document. Using EXSLT will only make your stylesheet portable amongst the implementations that support EXSLT. Note that there is no requirement for XSLT processors that are compliant to XSLT to support the extensions described within EXSLT. ## Namespace The namespace for EXSLT - Math is:
    http://exslt.org/math
Throughout this document, the prefix `math` is used to refer to this namespace. Any other prefix can be used within a particular stylesheet (though a prefix must be specified to enable the extension functions to be recognised as extensions). ## Functions ### Core Functions The following extension functions are considered stable and are core to EXSLT - Math. Processors that claim support of EXSLT - Math must support these functions.
Function | Version | Status | Syntax | Download
--- | --- | --- | --- | ---
math:min | 1 | stable | number math:min(node-set) | math.min.zip
math:max | 1 | stable | number math:max(node-set) | math.max.zip
math:highest | 1 | stable | node-set math:highest(node-set) | math.highest.zip
math:lowest | 1 | stable | node-set math:lowest(node-set) | math.lowest.zip
* old version of function
### Other Functions The following extension functions are not considered stable and are not part of the core of EXSLT - Math. Processors that claim support of EXSLT - Math might not support these functions.
Function | Version | Status | Syntax | Download
--- | --- | --- | --- | ---
math:abs | 1 | implemented | number math:abs(number) | math.abs.zip
math:sqrt | 1 | implemented | number math:sqrt(number) | math.sqrt.zip
math:power | 1 | implemented | number math:power(number, number) | math.power.zip
math:constant | 1 | implemented | number math:constant(string, number) | math.constant.zip
math:log | 1 | implemented | number math:log(number) | math.log.zip
math:random | 1 | implemented | number math:random() | math.random.zip
math:sin | 1 | implemented | number math:sin(number) | math.sin.zip
math:cos | 1 | implemented | number math:cos(number) | math.cos.zip
math:tan | 1 | implemented | number math:tan(number) | math.tan.zip
math:asin | 1 | implemented | number math:asin(number) | math.asin.zip
math:acos | 1 | implemented | number math:acos(number) | math.acos.zip
math:atan | 1 | implemented | number math:atan(number) | math.atan.zip
math:atan2 | 1 | implemented | number math:atan2(number, number) | math.atan2.zip
math:exp | 1 | implemented | number math:exp(number) | math.exp.zip
* old version of function
## Change History Submitted: 2001-03-28 Creator: Jeni Tennison A module of mathematical functions.
Version | Modified | By | Details
--- | --- | --- | ---
1.1 | 2001-05-22 | Jeni Tennison | Added math:min, math:max, math:lowest, and math:highest to the core.

http://www.exslt.org/math/math.html last modified 2001-05-22