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acosh	asinh

	Last updated: Thu, 26 Jun 2008

asin

(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.

Parameters

arg: The argument to process

Return Values

The arc sine of arg in radians

asin

Description

Parameters

Return Values

See Also