Asinfunction

Finds the arcsine of a number

Mathematical Functionsfunctiondocumented

Syntax

Declare Function Asin ( ByVal number As Double ) As Double

Parameters

Name		Description
`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.

Remarks

Usage



result = Asin( number )

Dialect Differences

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

Differences from QB

New to FreeBASIC

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

Reference

Documented in KeyPgAsin.html