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ACos 
Value = ACos ( Number AS Float ) AS Float
Value = Acs ( Number AS Float ) AS Float

Computes the arc-cosine of a number.

Errors

MessageDescription
Mathematical error (19) Number is out of [ -1, 1 ] range.

Example

PRINT ACos(0.5)
1.047197551197

PRINT ACos(-1)
3.14159265359

See also

Trigonometric Functions