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

(PHP 4, PHP 5, PHP 7) Rounds a float float round

(PHP 4, PHP 5, PHP 7) Exponential expression

(PECL trader >= 0.2.0) Unique 3 River array

(PECL trader >= 0.2.0) Money Flow Index array

(PHP 4, PHP 5, PHP 7) Base-10 logarithm float

(PECL trader >= 0.2.0) Ladder Bottom array

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

(PHP 4, PHP 5, PHP 7) Find highest value mixed

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