asinv(x)
Arc sine function - the
opposite of
the sinv function, returns an angle for a given sine value.
Parameters:
x - sine value (-1 ... 1 ).
Returns:
Angle in degrees (0 ... 360).
Speed:
FastRemarks:
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For maintaining compatibility both to standard-C and to the old C-Script language, the asin function is overloaded under lite-C. When called with a var or int argument, it behaves like asinv(), using degrees; when called with a float or double argument, it behaves like the standard C/C++ asin() function, using radians. For enforcing the use of radians regardless of the argument type, use the (float) cast operator.
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For learning about trigonometric functions see Trigonometry.
Example:
x = asinv(1); // x is 90
x = asinv(0.707); // x is 45
See also:
Trigonometry, sinv, cosv, tanv, asinv, acosv, atanv ► latest
version online