(PHP 4 >= 4.0.4, PHP 5, PHP 7) Check if number is "probably prime"

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Finds whether a value is not a number

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

(PECL stats >= 1.0.0) Not documented float

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Square root with remainder

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Multiply numbers

(PECL trader >= 0.2.0) Three Inside Up/Down

(PECL trader >= 0.2.0) High-Wave Candle array

(PECL stats >= 1.0.0) Not documented float

(PECL stats >= 1.0.0) float stats_stat_innerproduct ( array $arr1, array $arr2 )