Asin function

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Asin function

Format


Asin (number)

Parameter

number - any numeric expression or field containing a numeric expression in the range -1 to 1.

Data type returned

number

Description

Returns the arcsine, or inverse sine, of a number. The arcsine is the angle whose sine is number. The returned angle is given in radians in the range -Pi/2 to Pi/2. The input number parameter must be between -1 and 1.

To express the arcsine in degrees, multiply the result by 180/Pi or use the Degrees function.

Examples


Asin(-0.5) returns -0.523598776.


Asin(-0.5)*180/Pi returns -30.


Degrees(Asin(-0.5)) returns -30.


Asin(2) ? (not a number).

Related topics

Functions reference (category list)

Functions reference (alphabetical list)

About formulas

About functions

Defining calculation fields

Using operators in formulas

Contents > Functions reference (alphabetical list) > Trigonometric functions > Asin function