ASIN

Syntax

ASIN (Data)

Description

The ASIN function returns the arc-sine of Data. The result is the angle (in radians) whose sine equals Data.

The value of Data must fall between 1 and 1; otherwise, ASIN returns an error value.

To convert from radians to degrees, multiply by 180 / PI( ). (The PI function returns the value of PI.)

Returns

The arc-sine of Data.

Example

The following examples employ the ASIN built-in function:

• ASIN(0.5) returns 0.5235987756 (angle in radians).

• ASIN(0.5) * 180 / PI( ) returns 30 (angle in degrees).

• ASIN(SQRT(2) / 2) returns 0.7853981634 (angle in radians).

• ASIN(SQRT(2) / 2) * 180 / PI( ) returns 45 (angle in degrees).