math:tan

Returns the tangent of the argument, expressed in radians.

tan($θ as xs:double?) ➔ xs:double?

Arguments

 

xs:double?

The input angle in radians

Result

xs:double?

Namespace

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

Links to W3C specifications

XPath 3.1 Functions and Operators

Saxon availability

Available in XPath 3.0, XSLT 3.0, XQuery 3.0, and later versions. From Saxon 9.6, available in all editions.

Notes on the Saxon implementation

Implemented since Saxon 9.3; available whether or not XPath 3.0 is enabled. Saxon also (for compatibility) implements the function math:tan() in namespace http://exslt.org/math.