Simple class for converting base set of numbers with a customizable character base set.

Status: 0.3.1 (beta) released on 2009-09-20
License: PHP
Maintained: No
Open Bugs: none

Pure-PHP arbitrary precission integer arithmetic library

Status: 1.0.2 (stable) released on 2014-02-12
License: MIT
Maintained: Yes
Open Bugs: 1

Collection of helper methods for easy handling of binary data.

Status: 0.3.0 (alpha) released on 2005-03-20
License: LGPL
Maintained: No
Open Bugs: none

Classes that define complex numbers and their operations

Status: 0.8.6 (beta) released on 2010-10-05
License: PHP
Maintained: No
Open Bugs: none

Calculate the derivative of a mathematical expression

Status: 1.0.0RC1 (beta) released on 2007-02-24
License: PHP License 3.01
Maintained: Yes
Open Bugs: 1

Financial functions

Status: 1.0.1 (stable) released on 2010-10-24
License: PHP License
Maintained: No
Open Bugs: none

Classes that represent and manipulate fractions.

Status: 0.4.1 (beta) released on 2007-07-18
License: PHP
Maintained: Yes
Open Bugs: none

Classes to calculate histogram distributions

Status: 0.9.0 (beta) released on 2002-05-22
License: PHP
Maintained: No
Open Bugs: none

Package to represent and manipulate integers

Status: 0.9.0 (beta) released on 2010-10-02
License: PHP
Maintained: No
Open Bugs: none

Class to represent matrices and matrix operations

Status: 0.8.7 (beta) released on 2010-10-05
License: PHP
Maintained: No
Open Bugs: none

Numerical Root-Finding methods package in PHP

Status: 1.1.0a2 (alpha) released on 2010-10-25
License: BSD License
Maintained: Yes
Open Bugs: 1

Classes that define Quaternions and their operations

Status: 0.8.0 (beta) released on 2010-10-02
License: PHP
Maintained: No
Open Bugs: none

Reverse Polish Notation.

Status: 1.1.2 (stable) released on 2009-07-24
License: PHP License
Maintained: Yes
Open Bugs: none

Classes to calculate statistical parameters

Status: 0.9.1 (beta) released on 2010-10-04
License: PHP
Maintained: No
Open Bugs: none

Vector and vector operation classes

Status: 0.7.0 (beta) released on 2010-10-05
License: PHP
Maintained: No
Open Bugs: none

Several other PHP projects provide packages of their software that are installable using the PEAR infrastructure. A list of these projects can be found in the channels section.