Make Math Work

ArcSine

Usage:	ArcSine Sine
	ArcSin Sine
	ASin Sine

The ArcSine command returns the angle in radians of the entered Sine. This is the inverse function of Sine.

The argument entered with ArcSine must be -1 <= Argument <= 1.

Examples:
ArcSine .5 returns 0.523598775598299.
ArcSine SQRT(2) returns NaN because SQRT(2) > 1.
ASin (sin(pi/4)) >d4 returns 0.7854.

Try It

Enter a number between -1 and 1: