Package net.sf.saxon.option.exslt

Class Math

java.lang.Object
net.sf.saxon.option.exslt.Math
public abstract class Math extends Object
This class implements extension functions in the http://exslt.org/math namespace.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Math()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static double
    abs(double x)
    Get the absolute value of a numeric value (SStL)
    static double
    acos(double x)
    Get the arccosine of a numeric value (SStL)
    static double
    asin(double x)
    Get the arcsine of a numeric value (SStL)
    static double
    atan(double x)
    Get the arctangent of a numeric value (SStL)
    static double
    atan2(double x, double y)
    Converts rectangular coordinates to polar (SStL)
    static double
    constant(XPathContext context, String name, double precision)
    Get a named constant to a given precision (SStL)
    static double
    cos(double x)
    Get the cosine of a numeric value (SStL)
    static double
    exp(double x)
    Get the exponential of a numeric value (SStL)
    static Sequence
    highest(XPathContext context, SequenceIterator nsv)
    Get the items with maximum numeric value of the string-value of each of a sequence of items.
    static double
    log(double x)
    Get the logarithm of a numeric value (SStL)
    static Sequence
    lowest(XPathContext context, SequenceIterator nsv)
    Get the items with minimum numeric value of the string-value of each of a sequence of items The items are returned in the order of the original sequence.
    static double
    max(XPathContext context, SequenceIterator nsv)
    Get the maximum numeric value of the string-value of each of a set of nodes
    static double
    min(XPathContext context, SequenceIterator nsv)
    Get the minimum numeric value of the string-value of each of a set of nodes
    static NumericValue
    power(NumericValue n, NumericValue e)
    Get a number n raised to the power of another number e.
    static double
    random()
    Get a random numeric value (SStL)
    static double
    sin(double x)
    Get the sine of a numeric value (SStL)
    static double
    sqrt(double x)
    Get the square root of a numeric value (SStL)
    static double
    tan(double x)
    Get the tangent of a numeric value (SStL)

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Math

      public Math()

  • Method Details

    • max

      public static double max(XPathContext context, SequenceIterator nsv) throws XPathException
      Get the maximum numeric value of the string-value of each of a set of nodes
      Parameters:
      context - the XPath dynamic context
      nsv - the values whose maximum is required
      Throws:
      XPathException

    • min

      public static double min(XPathContext context, SequenceIterator nsv) throws XPathException
      Get the minimum numeric value of the string-value of each of a set of nodes
      Parameters:
      context - the XPath dynamic context
      nsv - the values whose minimum is required
      Throws:
      XPathException

    • highest

      public static Sequence highest(XPathContext context, SequenceIterator nsv) throws XPathException
      Get the items with maximum numeric value of the string-value of each of a sequence of items. The items are returned in the order of the original sequence.
      Parameters:
      context - the XPath dynamic context
      nsv - the input sequence
      Throws:
      XPathException

    • lowest

      public static Sequence lowest(XPathContext context, SequenceIterator nsv) throws XPathException
      Get the items with minimum numeric value of the string-value of each of a sequence of items The items are returned in the order of the original sequence.
      Parameters:
      context - the XPath dynamic context
      nsv - the input sequence
      Throws:
      XPathException

    • abs

      public static double abs(double x)
      Get the absolute value of a numeric value (SStL)
      Parameters:
      x - the input value
      Returns:
      the result

    • sqrt

      public static double sqrt(double x)
      Get the square root of a numeric value (SStL)
      Parameters:
      x - the input value
      Returns:
      the result

    • power

      public static NumericValue power(NumericValue n, NumericValue e) throws XPathException
      Get a number n raised to the power of another number e.

      If e is a non-negative integer, then the result will have the same type as n, except that a float is always promoted to double.

      If e is a negative integer, then the result will have the same type as n except that a float is treated as a double and an integer is treated as a decimal.

      If e is not an integer (or an xs:decimal representing an integer), the result will be a double.

      Parameters:
      n - the first argument.
      e - the second argument. M
      Returns:
      the result of n^e
      Throws:
      XPathException - if an arithmetic overflow is detected. However, there is no guarantee that overflow will always be detected, it may (especially with double arithmetic) lead to wrong answers being returned.

    • constant

      public static double constant(XPathContext context, String name, double precision) throws XPathException
      Get a named constant to a given precision (SStL)
      Parameters:
      context - the XPath dynamic context
      name - the name of the constant
      precision - the required precision
      Throws:
      XPathException

    • log

      public static double log(double x)
      Get the logarithm of a numeric value (SStL)
      Parameters:
      x - the input value
      Returns:
      the result

    • random

      public static double random()
      Get a random numeric value (SStL)
      Returns:
      the result

    • sin

      public static double sin(double x)
      Get the sine of a numeric value (SStL)
      Parameters:
      x - the input value
      Returns:
      the result

    • cos

      public static double cos(double x)
      Get the cosine of a numeric value (SStL)
      Parameters:
      x - the input value
      Returns:
      the result

    • tan

      public static double tan(double x)
      Get the tangent of a numeric value (SStL)
      Parameters:
      x - the input value
      Returns:
      the result

    • asin

      public static double asin(double x)
      Get the arcsine of a numeric value (SStL)
      Parameters:
      x - the input value
      Returns:
      the result

    • acos

      public static double acos(double x)
      Get the arccosine of a numeric value (SStL)
      Parameters:
      x - the input value
      Returns:
      the result

    • atan

      public static double atan(double x)
      Get the arctangent of a numeric value (SStL)
      Parameters:
      x - the input value
      Returns:
      the result

    • atan2

      public static double atan2(double x, double y)
      Converts rectangular coordinates to polar (SStL)
      Parameters:
      x - the first input value
      y - the second input value
      Returns:
      the result

    • exp

      public static double exp(double x)
      Get the exponential of a numeric value (SStL)
      Parameters:
      x - the input value
      Returns:
      the result