(PHP 4, PHP 5, PHP 7) Arc tangent float atan

(PHP 4, PHP 5, PHP 7) Exponential expression

(PHP 4, PHP 5, PHP 7) Combined linear congruential generator

(PHP 4, PHP 5, PHP 7) Binary to decimal number

(PHP 4, PHP 5, PHP 7) Find highest value mixed

(PHP 4, PHP 5, PHP 7) Rounds a float float round

(PHP 4, PHP 5, PHP 7) Square root float sqrt

(PHP 4, PHP 5, PHP 7) Absolute value number abs

(PHP 4, PHP 5, PHP 7) Base-10 logarithm float

(PHP 7) Integer division int intdiv ( int $dividend