factoradic_c_utils

Fast utilites to convert integers between decimal (base 10) and factoradic representation (factorial hase).

Installing

Dependencies

• A working C compiler (both gcc and clang have beentested.

• GMP

Downloading the source

Download the project with git:

git clone https://github.com/pdkl95/factoradic_c_utils.git

or download and unpack the zip arhive provided by GitHub.

Building the Util Programs

./configure
make
make check    # optional
make install

See ./configure --help for a list a buils and install options..

If the autoconf script cannot find gmp, you can provide the location of the librarey and header file directly with the --with-gmp-include=DIR and --with-gmp-lib=DIR options.

Usage

Converting decimal to factoradic

$ dec2fact 719
5:4:3:2:1:0

$ dec2fact 720
1:0:0:0:0:0:0

$ dec2fact -d ',' 720
1,0,0,0,0,0,0

converting factoradic to decimal

$ fact2dec 5:4:3:2:1:0
719

$ fact2dec 1:0:0:0:0:0:0
720

$ fact2dec -d ',' 1,0,0,0,0,0,0
720

License

Copyright 2022 Brent Sanders

factoradic_c_utils is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

factoradic_c_utils is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with factoradic_c_utils. If not, see https://www.gnu.org/licenses/.