Query: atan
OS: php
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
ATAN(3) 1 ATAN(3) atan - Arc tangentSYNOPSISfloat atan (float $arg)DESCRIPTIONReturns the arc tangent of $arg in radians. atan(3) is the complementary function of tan(3), which means that a==tan(atan(a)) for every value of a that is within atan(3)'s range.PARAMETERSo $arg - The argument to processRETURN VALUESThe arc tangent of $arg in radians.SEE ALSOtan(3), atanh(3), asin(3), acos(3). PHP Documentation Group ATAN(3)
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