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CLN is a C++ class library for numbers: integers, rational, float, complex, modular integer. It implements elementary, logical, transcendental functions. Unlimited precision, 100 million digits are no problem. Easy to use because of algebraic syntax and automatic memory management.


User manual available from


Download version 1.1.13 (stable)
released on 8 August 2006


Related Projects


LicenseVerified byVerified onNotes
GPLv2orlaterJanet Casey14 February 2001

Leaders and contributors

Richard B. Kreckel Maintainer

Resources and communication

Audience Resource type URI
Bug Tracking,Developer,Support E-mail

Software prerequisites

Kind Description
Weak prerequisite sed (for HP-UX)
Required to use gmp 3.x
Required to build GNU g++ 2.95 or newer
Required to build make

This entry (in part or in whole) was last reviewed on 13 May 2007.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.

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