Math Functions
This module defines functions to perform mathematical operations, such as pi, asin and acos. Most functions are described in detail in the XQuery Functions and Operators Specification, and some functions have been added.
All functions in this module are assigned to the http://www.w3.org/2005/xpath-functions/math namespace, which is statically bound to the math prefix.
| Signature | math:pi() as xs:double |
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| Summary | Returns the value of the mathematical constant π. |
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| Examples | math:pi()
Result: 3.141592653589793e0
60 * (math:pi() div 180)
Converts an angle of 60 degrees to radians. |
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| Signature | math:e() as xs:double |
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| Summary | Returns the xs:double value of the mathematical constant e. |
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| Examples | math:e()
Result: 2.718281828459045e0 |
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| Signature | math:sqrt(
$value as xs:double?
) as xs:double? |
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| Summary | Returns the square root of $value. |
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| Signature | math:pow(
$x as xs:double?,
$y as xs:double
) as xs:double? |
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| Summary | Returns $x raised to the power of $y. |
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| Examples | math:pow(2, 3)
Result: 8 |
|---|
| Signature | math:exp(
$value as xs:double?
) as xs:double? |
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| Summary | Returns e raised to the power of $value. |
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| Examples | math:exp(1)
Returns e. |
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| Signature | math:log(
$value as xs:double?
) as xs:double? |
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| Summary | Returns the natural logarithm (base e) of $value. |
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| Examples | math:log(math:e())
Result: 1 |
|---|
| Signature | math:log10(
$value as xs:double?
) as xs:double? |
|---|
| Summary | Returns the base 10 logarithm of $value. |
|---|
| Examples | math:log(100)
Result: 4.605170185988092e0 |
|---|
| Signature | math:sin(
$radians as xs:double?
) as xs:double? |
|---|
| Summary | Returns the sine of $radians, expressed as an angle in radians. |
|---|
| Signature | math:cos(
$radians as xs:double?
) as xs:double? |
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| Summary | Returns the cosine of $radians, expressed as an angle in radians. |
|---|
| Signature | math:tan(
$radians as xs:double?
) as xs:double? |
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| Summary | Returns the tangent of $radians, expressed as an angle in radians. |
|---|
| Signature | math:asin(
$value as xs:double?
) as xs:double? |
|---|
| Summary | Returns the arc sine of $value, expressed as an angle in radians in the range –π/2 to +π/2. |
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| Signature | math:acos(
$value as xs:double?
) as xs:double? |
|---|
| Summary | Returns the arc cosine of $value, expressed as an angle in radians in the range 0 to +π. |
|---|
| Signature | math:atan(
$value as xs:double?
) as xs:double? |
|---|
| Summary | Returns the arc tangent of $value, expressed as an angle in radians in the range –π/2 to +π/2. |
|---|
| Signature | math:atan2(
$x as xs:double?,
$y as xs:double
) as xs:double? |
|---|
| Summary | Returns the arc tangent of $x divided by $y, expressed as an angle in radians in the range –π to +π. |
|---|
| Signature | math:sinh(
$value as xs:double?
) as xs:double? |
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| Summary | Returns the hyperbolic sine of $value |
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| Examples | math:sinh(0)
Result: 0 |
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| Signature | math:cosh(
$value as xs:double?
) as xs:double? |
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| Summary | Returns the hyperbolic cosine of $value. |
|---|
| Examples | math:cosh(0)
Result: 1 |
|---|
| Signature | math:tanh(
$value as xs:double?
) as xs:double? |
|---|
| Summary | Returns the hyperbolic tangent of $value. |
|---|
| Examples | math:tanh(100)
Result: 1 |
|---|
Version 11.0Version 9.1- Updated:
math:crc32 can be called with empty sequence.
Version 7.5Version 7.3- Added:
math:crc32 and math:uuid have been adopted from the obsolete Utility Module.
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