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

(PECL trader >= 0.2.0) Vector Arithmetic Exp

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

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

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

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Calculates one's complement

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

(PHP 4, PHP 5, PHP 7) Get value of pi float pi

(PECL stats >= 1.0.0) Returns a random floating point number from a uniform distribution over 0 - 1 (endpoints

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