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XQuery math:acos

MarkLogic 9 Product Documentation
math.acos

math.acos(
   x as Number
) as Number

Summary

Returns the arc cosine of x, in radians, in the range from 0 to pi (inclusive).

Parameters
x The fraction to be evaluated. Must be in the range of -1 to +1 (inclusive).

Example

  math.acos(.5)

  => 1.0471975511966

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