asin

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) 

Result: -0.25268025514207865

asin(1) 

Result: 1.5707963267948966

asin(2) 

Result: (invalid)

See also

sin, which calculates the sine of a number.