Inverse Trigonometric Functions
ArcSin( ) ArcCos( ) ArcTan( )
ArcCsc( ) ArcSec( ) ArcCot( )

Y = ArcSin(X)
Inverse Sine.
Domain: -1 <= X <= +1
Range: -Pi/2 <= Y <= +Pi/2

Y = ArcCos(X)
Inverse Cosine.
Domain: -1 <= X <= +1
Range: 0 <= Y <= +Pi

Y = ArcTan(X)
Inverse Tangent.
Domain: -Infinity < X < +Infinity
Range: -Pi/2 < Y < +Pi/2

Y = ArcCsc(X)
Inverse Cosecant.
Domain: abs(X) >= +1
Range: 0 < abs(Y)<= +Pi/2

Y = ArcSec(X)
Inverse Secant.
Domain: abs(X) >= +1
Range: 0 <= Y <= +Pi; where Y not equal to +Pi/2

Y = ArcCot(X)
Inverse Cotangent.
Domain: -Infinity < X < +Infinity Range: 0 < Y < +Pi