Go to standardXPath function: number number (object?)
Standard excerpt:
The number function converts its argument to a number as follows: a string that consists of optional whitespace followed by
an optional minus sign followed by a Number followed by whitespace is converted to the IEEE 754 number that is nearest (according
to the IEEE 754 round-to-nearest rule) to the mathematical value represented by the string; any other string is converted
to NaN boolean true is converted to 1; boolean false is converted to 0 a node-set is first converted to a string as if by
a call to the string function and then converted in the same way as a string argument, an object of a type other than the
four basic types is converted to a number in a way that is dependent on that type. If the argument is omitted, it defaults
to a node-set with the context node as its only member.
Examples (xslt:xml): Overview
84:2
85:4Interactive xlab: [number functions] [xsl:value-of] [xsl:template]