ASin

Description

Calculates the arcsine of an angle.

Syntax

ASin ( n )

Argument

Description

n

The ratio of the lengths of two sides of a triangle for which you want a corresponding angle (in radians). The ratio must be a value between -1 and 1.


Return value

Double. Returns the arcsine of n.

Examples

This statement returns .999998 (rounded to six places):

ASin(.84147)

This statement returns .520311 (rounded to six places):

ASin(LogTen (Pi (1)))

This statement returns 0:

ASin(0)

This code in the Clicked event of a button catches a runtime error that occurs when an arcsine is taken for a user-entered value -- passed in a variable -- that is outside of the permitted range:

Double ld_num
ld_num = Double (sle_1.text)
 
TRY
sle_2.text = string (asin (ld_num))
CATCH (runtimeerror er)
   MessageBox("Runtime Error", er.getmessage())
END TRY

See also

Sin

ACos

ATan

Pi

ASin method for DataWindows in the section called “ASin” in DataWindow Reference.