1NUMCONV(1) User Commands NUMCONV(1)
2
3
4
6 numconv - convert numbers from one number system to another
7
9 Numconv <options>
10
12 numconv is a filter that converts integers from one number system to
13 another. For example, it can convert from Roman Numerals such as
14 "CCLVI" to ordinary Western numbers such as "256" or from Western num‐
15 bers to Chinese. The great majority of number systems, both modern and
16 ancient, are supported, including numerous variants.
17
18 If the input number system is 'all', the number system will be autode‐
19 tected.
20
21 numconv is a command line interface to libuninum a library for convert‐
22 ing between textual representations of numbers and machine-internal
23 representations. Further information about the conversions performed is
24 available in the documentation for this library.
25
27 -i <input file>
28 Read input from the specified file.
29
30 -o <output file>
31 Write output into the specified file.
32
33 -I Identify the number system of the input.
34
35 -c List the available number system cover terms.
36
37 -l List the available number systems.
38
39 -f <input number system>
40 Specify the number system of the input.
41
42 -t <output number system>
43 Specify the number system of the output.
44
45 -b <input base>
46 Specify the input base for Western numbers. The base must be in
47 the range [1,36].
48
49 -B <output base>
50 Specify the output base for Western numbers. The base must be in
51 the range [1,36].
52
53 -g <output general group size>
54 Specify the size of digit groups other than the ow-order group.
55 The default is 3.
56
57 -G <output low group size>
58 Specify the size of the low-order group of digits. The default
59 is 3.
60
61 -s <output group separator character>
62 Specify character to use as "thousands separator". The default
63 is a comma.
64
65 -L Set the output grouping parameters, general group size, first
66 group size, and group separator character, according to the cur‐
67 rent locale.
68
69 -m When generating Roman numerals, use unit characters with super‐
70 script macron for thousands greater than one instead of Ms.
71
72 -h Print help information.
73
74 -v Print version information.
75
77 To convert from Roman Numerals to ordinary Western numbers:
78
79 numconv -f Roman -t Western_Lower
80
81 To convert from ordinary Western numbers to the variety of number in
82 current use in the People's Republic of China:
83
84 numconv -f Western -t Mandarin_Regular_Simplified
85
86 To convert from ordinary Western numbers to Western numbers in base 2:
87
88 numconv -f Western_Lower -t Western_Lower -B 2
89
90 To convert from Urdu numbers to Hindi numbers with the traditional
91 Indian grouping:
92
93 numconv -f Perso_Arabic -t Devanagari -g 2
94
95
97 libuninum (3)
98
99
101 Bill Poser (billposer@alum.mit.edu)
102
104 GNU General Public License, version 2.
105 (http://www.gnu.org/licenses/gpl.txt)
106
107
108
109numconv September 2007 NUMCONV(1)