Construct a double value from an item value.
xs:double(item $value) => double
This is a constructor function that takes an item value as argument and
returns a value of type xs:double. If the argument is a literal,
then the literal must be a valid lexical form of its type.
As specified in the respective section of the W3C recommendation
XML
Schema Part 2: Datatypes, a value of type xs:double
represents a double-precision floating point number according to IEEE 754-1985.
The lexical form uses scientific notation, consisting of the mantissa which
must be a decimal number, the letter "E" or "e", and an exponent which must be
an integer value.
| $value |
item value |
|---|
Generate a valid value of type xs:double:
xs:double("002002.270")
This number is represented as 2.00227E3.
The following construct(s) refer to this construct: