(PHP 4 >= 4.2.0, PHP 5, PHP 7) Finds whether a value is infinite

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Bitwise AND

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

(PECL stats >= 1.0.0) Not documented float

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Hyperbolic tangent

(PECL trader >= 0.2.0) Marubozu array trader_cdlmarubozu

(PECL stats >= 1.0.0) Not documented float

(PECL lapack >= 0.1.0) Calculate the inverse of a matrix

(PECL stats >= 1.0.0) Generates a single random deviate from a noncentral T distribution

(PECL stats >= 1.0.0) Generates a single random deviate from an exponential distribution with mean "av"