asin

(PHP 3, PHP 4, PHP 5)

asin -- Arc sine

Description

float asin ( float arg )

Returns the arc sine of arg in radians. asin() is the complementary function of sin(), which means that a==sin(asin(a)) for every value of a that is within asin()'s range.

See also: asinh(), acos(), and atan().

Hosting by: Hurra Communications Ltd.
Generated: 2007-01-26 18:00:16