Tests of XPath subtraction in XPath 2.0 : Math « XSLT stylesheet « XML Tutorial

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2. XSLT stylesheet
3. Math

File: Data.xml


File: Transform.xslt

<?xml version="1.0"?>
<xsl:stylesheet version="2.0"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:xs="http://www.w3.org/2001/XMLSchema">

  <xsl:output method="text"/>

  <xsl:template match="/">
    <xsl:text>Tests of XPath subtraction in XPath 2.0&#xA;</xsl:text>
    <xsl:text>&#xA;  9 - 3 = </xsl:text>
    <xsl:value-of select="9 - 3"/>
    <xsl:text>&#xA;  9 - 3.8 = </xsl:text>
    <xsl:value-of select="9 - 3.8"/>
    <xsl:text>&#xA;  9 - number('4') = </xsl:text>
    <xsl:value-of select="9 - number('4')"/>
    <xsl:text>&#xA;  9 - number('Q') = </xsl:text>
    <xsl:value-of select="9 - number('Q')"/>
    <xsl:text>&#xA;  9 - number(true()) = </xsl:text>
    <xsl:value-of select="9 - number(true())"/>
    <xsl:text>&#xA;  9 - number(false()) = </xsl:text>
    <xsl:value-of select="9 - number(false())"/>
  </xsl:template>
</xsl:stylesheet>

Output:

Tests of XPath subtraction in XPath 2.0

  9 - 3 = 6
  9 - 3.8 = 5.2
  9 - number('4') = 5
  9 - number('Q') = NaN
  9 - number(true()) = 8
  9 - number(false()) = 9