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Product Edition
Version
asin
Basics
Expander triangle
Type
Function
Syntax

the asin of number

asin(number)

See Also
Introduced
1.0
Environment
Desktop, Web and Server
Platform Support
MacOS,Mac OS X,Windows,Linux
Security
None required
Summary
Returns the arc sine of a number in radians.
Examples

the asin of .225
sin(asin(.5))
asin(pi/4 - sin(myAngle))

Additional Comments
Expander triangle

Use the asin function to find the arc sine of a number.

Parameters:

The number is a number between -1 and 1, or an expression that evaluates to such a number.

Value:

The asin function returns a number between -pi/2 and pi/2.

Comments:

The arc sine of number is an angle whose sine is equal to number. In other words, asin is an inverse of the sin function.

The result of the asin function is returned in radians. To get this result in degrees, use the following custom function:

function asinInDegrees theMagnitude

return asin(theMagnitude) * 180 / pi

end asinInDegrees

User Comments
Expander triangle