(PHP 4 >= 4.0.4, PHP 5, PHP 7) Create GMP number

(PECL stats >= 1.0.0) Returns the absolute deviation of an array of values

(PECL trader >= 0.2.0) Vector Arithmetic Mult

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

(PHP 4, PHP 5, PHP 7) Decimal to binary string

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

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

(PECL trader >= 0.2.0) Kicking - bull/bear determined by the longer marubozu

(PECL trader >= 0.2.0) Plus Directional Indicator

(PHP 4, PHP 5, PHP 7) Get the square root of an arbitrary precision number