To calculate the arcsine

The function returns the arcsine of a number.

Syntax

asin(number)

Return

number

Examples

asin(x) To calculate the arcsine of a given number x between -1 and 1.

asin(-0.25) asin(-0.25)

Result: -0.25268025514207865

asin(1) asin(1)

Result: 1.5707963267948966

asin(2) asin(2)

Result: (invalid)

See also

sin which calculates the sine of a number.