Asin

Finds the arcsine of a number

Syntax
   Declare Function Asin ( ByVal number As Double ) As Double

Usage
   result = Asin( number )

Parameters
   number
      Sine value in the range [-1..1].

Return Value
   The arcsine of number, in radians, in the range [-Pi/2..Pi/2].

Description
   Asin returns the arcsine of the argument number as a Double within the 
   range of -Pi/2 to Pi/2.  The arcsine is the inverse of the Sin function. 
   The returned angle is measured in radians (not degrees).

   Asin can be overloaded as operator to accept user-defined types.

Example
   Dim h As Double
   Dim o As Double
   Input "Please enter the length of the hypotenuse of a triangle: ", h
   Input "Please enter the length of the opposite side of the triangle: ", o
   Print ""
   Print "The angle between the sides is"; Asin ( o / h )
   Sleep

The output would look like:

   Please enter the length of the hypotenuse of a triangle: 5
   Please enter the length of the opposite side of the triangle: 3
   The angle between the sides Is 0.6435011087932844

Dialect Differences
   * Not available in the -lang qb dialect unless referenced with the 
     alias __Asin.

Differences from QB
   * New to FreeBASIC

See also
   * Sin
   * A Brief Introduction To Trigonometry

