**CIGAL Reference Manual, Chapter 3 (Functions): asin**
===== Asin -- Calculate the arcsine of a variable =====
**usage: result = asin(x)**

The ASIN function returns the arcsine of its argument. The input value must be in
the range -1 to 1, and the output will be in the range 0 to 180 degrees. Illegal
input values result in an output value of -1.  If the input X is a variable with
more than one value, ASIN will generate an output variable with the same
number of values.

**See Also:**\\
[[jvs:cigal:manual:chapter3:acos|ACOS(3)]], 
[[jvs:cigal:manual:chapter3:cos|COS(3)]], 
[[jvs:cigal:manual:chapter2:rotate|ROTATE(2)]], 
[[jvs:cigal:manual:chapter3:sin|SIN(3)]]

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