Difference between revisions of "Units"

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(update per Adrian email to gnu-prog-discuss, 12 Jan 2012 22:17:21)
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{{Entry
 
{{Entry
|Name=Units
+
|Name=units
 
|Short description=Unit conversion and calculation
 
|Short description=Unit conversion and calculation
|Full description=The program converts quantities expressed in various scales to their equivalents in other scales. Units can only handle multiplicative scale changes. For example, it cannot convert Celsius to Fahrenheit but it can convert temperature differences between those teperature scales. The units are defined externally in an extensive, well annotated data file that defines over 2000 units. You can also provide your own data file.
+
|Full description=The units program converts quantities expressed in various systems of
 +
measurement to their equivalents in other systems of measurement.
 +
Like many similar programs, it can handle multiplicative scale
 +
changes. It can also handle nonlinear conversions such as Fahrenheit
 +
to Celsius, and it can perform conversions from sums of units, such as
 +
converting between feet plus inches and meters.
 +
 
 +
Beyond simple unit conversions, units can be used as a
 +
general-purpose scientific calculator that keeps track of units in its
 +
calculations. You can form arbitrary complex mathematical expressions
 +
of dimensions including sums, products, quotients, powers, and even roots
 +
of dimensions.  Thus you can ensure accuracy and dimensional consistency
 +
when working with long expressions that involve many different units
 +
that may combine in complex ways.
 +
 
 +
The units are defined in an extensive, well annotated data file that
 +
defines over 2500 units. You can also provide your own file to
 +
supplement or replace the standard file.
 +
 
 +
|Homepage URL=http://www.gnu.org/software/units/
 +
|Is GNU=Yes
 +
|GNU package identifier=units
 
|User level=none
 
|User level=none
|Status=Live
 
|Component programs=
 
|Homepage URL=http://www.gnu.org/software/units/units.html
 
|VCS checkout command=
 
 
|Computer languages=C
 
|Computer languages=C
|Documentation note=
+
|Related projects=Portable_Unit_Converter_(PUC)
|Paid support=
 
|IRC help=
 
|IRC general=
 
|IRC development=
 
|Related projects=Portable_Unit_Converter_(PUC),Gnutrition
 
 
|Keywords=conversion,scales,quantities,multiplication,units,calculation
 
|Keywords=conversion,scales,quantities,multiplication,units,calculation
|Is GNU=y
+
|Version identifier=1.88
 +
|Version date=2010/02/15
 +
|Version status=stable
 +
|Version download=http://ftpmirror.gnu.org/units/
 
|Last review by=Janet Casey
 
|Last review by=Janet Casey
 
|Last review date=2002-05-19
 
|Last review date=2002-05-19
 
|Submitted by=Database conversion
 
|Submitted by=Database conversion
 
|Submitted date=2011-04-01
 
|Submitted date=2011-04-01
|Version identifier=1.87
 
|Version date=2007-09-26
 
|Version status=stable
 
|Version download=http://ftp.gnu.org/gnu/units/
 
 
|License verified date=2007-12-11
 
|License verified date=2007-12-11
|Version comment=
+
}}
 +
{{Project license
 +
|License=GPLv2orlater
 +
|License verified by=Deborah Nicholson
 +
|License verified date=2007-12-11
 +
}}
 +
{{Project license
 +
|License=GPLv3orlater
 +
|License verified by=Deborah Nicholson
 +
|License verified date=2007-12-11
 
}}
 
}}
 
{{Person
 
{{Person
 +
|Real name=Adrian Mariano
 
|Role=Maintainer
 
|Role=Maintainer
|Real name=Adrian Mariano
+
|Email=adrianm@gnu.org
|Email=adrian@cam.cornell.edu
 
|Resource URL=
 
 
}}
 
}}
 
{{Resource
 
{{Resource
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}}
 
}}
 
{{Software category
 
{{Software category
|Interface=command-line,console
+
|Interface=command-line, console
 +
|Science=scientific-visualization
 
|Use=science
 
|Use=science
}}
 
{{Project license
 
|License=GPLv2orlater
 
|License verified by=Deborah Nicholson
 
|License verified date=2007-12-11
 
}}
 
{{Project license
 
|License=GPLv3orlater
 
|License verified by=Deborah Nicholson
 
|License verified date=2007-12-11
 
 
}}
 
}}
 
{{Software prerequisite
 
{{Software prerequisite
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|Prerequisite description=readline
 
|Prerequisite description=readline
 
}}
 
}}
 +
{{Featured}}

Revision as of 19:48, 13 January 2012


[edit]

GNU Units

https://www.gnu.org/software/units/
Unit conversion and calculation program.

GNU Units is a unit conversion tool designed to help simplify the process of converting between different systems of units.

The program converts quantities expressed in various systems of measurement to their equivalents in other systems of measurement. Like many similar programs, the units program can handle multiplicative scale changes. It can also handle nonlinear conversions such as Fahrenheit to Celsius, and it can perform conversions to and from sums of units, such as converting between feet plus inches and meters.

Beyond simple unit conversions, units can be used as a general-purpose scientific calculator that keeps track of units in its calculations. You can form arbitrary complex mathematical expressions of dimensions including sums, products, quotients, powers, and even roots of dimensions. Thus you can ensure accuracy and dimensional consistency when working with long expressions that involve many different units that may combine in complex ways.

The units are defined in an extensive, well annotated data file that defines over 2500 units. You can also provide your own file to supplement or replace the standard file.





Licensing

License

Verified by

Verified on

Notes

Verified by

Genium

Verified on

4 October 2022




Leaders and contributors

Contact(s)Role
Adrian Mariano Maintainer
Jeff Conrad Maintainer


Resources and communication

AudienceResource typeURI
FTPDownloadhttps://ftp.gnu.org/gnu/units/
FTPDownloadhttps://alpha.gnu.org/gnu/units/
FTPMailing Listhttps://ftpmirror.gnu.org/units/
DebianDeveloperhttps://tracker.debian.org/pkg/units
WikidataGeneralhttps://www.wikidata.org/wiki/Q3093305
SavannahDeveloperhttps://savannah.gnu.org/projects/units/


Software prerequisites

KindDescription
Weak prerequisiteReadline

This entry (in part or in whole) was last reviewed on 4 October 2022.




Entry




















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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.