(PECL stats >= 1.0.0) Not documented float

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Calculate square root

(PECL stats >= 1.0.0) Calculates any one parameter of the non-central chi-square distribution given values

(PECL trader >= 0.2.0) Modified Hikkake Pattern

(PECL trader >= 0.2.0) Weighted Moving Average

(PHP 4, PHP 5, PHP 7) Divide two arbitrary precision numbers

(PHP 4, PHP 5, PHP 7) Subtract one arbitrary precision number from another

(PECL trader >= 0.2.0) Standard Deviation

(PECL stats >= 1.0.0) Not documented float

(PECL stats >= 1.0.0) Not documented float