Calc - C-style arbitrary precision calculator

		custom search of this site
	Calc - C-style arbitrary precision calculator
	[chongo's home] [Astronomy] [Mathematics] [Prime Numbers] [Programming] [Technology] [contacting Landon]

Useful calc links:

The official calc releases are in the form of RPMs and source tarballs are made available on GitHub:
calc GitHub release repository

calc GitHub master source code branch
Calc as a number of source mirror sites
What is calc?
Who wrote calc?
How to report a calc bug
How to ask a question about calc
How to contribute code to calc

If are interested in algorithms for finding very large primes:

Some of the methods used by the Amdahl 6 to discover (what was at the time of discovery, the largest known non-Mersenne prime): (391581*2^216193-1) are contained in the calc script lucas.cal. This calc script is available as part of the calc distribution.

The tutorial on how to find a new largest known prime goes into detail about the above mentioned Amdahl 6 lucas.cal method.

If are interested the product of curious primes:

See the curious calc web page.

Calc is free

The calc program is free. It is distributed under the GNU Lesser General Public License.

Calc is open software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation version 2.1 of the License.

Many people have expressed their thanks the many people who wrote calc, tested calc, contributed code to calc, patched calc, and helped to improve it since it started back in 1984.

We, the authors of calc wrote calc because they wanted to write it, because it was fun writing it, and because we wanted you to use and enjoy it.

If you use and enjoy calc, and you want to show your appreciation for calc, you might consider doing some of the following:

Write and contribute some .cal resource files
Write and contribute some calc shell scripts
Work on one of the calc TODO items (type "help todo")