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$ASIN(n) Function

This math function will return the ArcSine of n where n is a number, variable that represents a number, or a math equation that returns a number. The ArcSine is the angle in radians whose Sine is equal to n. If n is less than -1 or greater than 1, an overflow will result and the word "Overflow" will be returned. To calculate the ArcSine in degrees, use $DEG($ASIN(n)) instead.

Examples:

$ASIN(0.5) returns 0.523598776
$DEG($ASIN(0.5)) returns 30
$DEG($ASIN(-0.5)) returns -30