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Man Pages


Manual Reference Pages  -  NUMCONV (1)

NAME

numconv - convert numbers from one number system to another

CONTENTS

Synopsis
Description
Options
Author
License

SYNOPSIS

Numconv <options>

DESCRIPTION

numconv is a filter that converts integers from one number system to another. For example, it can convert from Roman Numerals such as "CCLVI" to ordinary Western numbers such as "256" or from Western numbers to Chinese. The great majority of number systems, both modern and ancient, are supported, including numerous variants.

If the input number system is ’all’, the number system will be autodetected.

numconv is a command line interface to libuninum a library for converting between textual representations of numbers and machine-internal representations. Further information about the conversions performed is available in the documentation for this library.

OPTIONS

-i <input file>
  Read input from the specified file.
-o <output file>
  Write output into the specified file.
-I Identify the number system of the input.
-c List the available number system cover terms.
-l List the available number systems.
-f <input number system>
  Specify the number system of the input.
-t <output number system>
  Specify the number system of the output.
-b <input base>
  Specify the input base for Western numbers. The base must be in the range [1,36].
-B <output base>
  Specify the output base for Western numbers. The base must be in the range [1,36].
-g <output general group size>
  Specify the size of digit groups other than the ow-order group. The default is 3.
-G <output low group size>
  Specify the size of the low-order group of digits. The default is 3.
-s <output group separator character>
  Specify character to use as "thousands separator". The default is a comma.
-L Set the output grouping parameters, general group size, first group size, and group separator character, according to the current locale.
-m When generating Roman numerals, use unit characters with superscript macron for thousands greater than one instead of Ms.
-h Print help information.
-v Print version information.

EXAMPLES

To convert from Roman Numerals to ordinary Western numbers:

numconv -f Roman -t Western_Lower

To convert from ordinary Western numbers to the variety of number in current use in the People’s Republic of China:

numconv -f Western -t Mandarin_Regular_Simplified

To convert from ordinary Western numbers to Western numbers in base 2:

numconv -f Western_Lower -t Western_Lower -B 2

To convert from Urdu numbers to Hindi numbers with the traditional Indian grouping:

numconv -f Perso_Arabic -t Devanagari -g 2

SEE ALSO

libuninum(3)

AUTHOR

Bill Poser (billposer@alum.mit.edu)

LICENSE

GNU General Public License, version 2. (http://www.gnu.org/licenses/gpl.txt)
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numconv NUMCONV (1) September 2007

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