FACTOID # 144: A three-minute local phone call in Ecuador costs 60 U.S. cents, 60 times as much as in Ukraine, Macedonia, Saudi Arabia, Nepal, or Uzbekistan.
 
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Encyclopedia > Units unit conversion program

units is a Unix computer program for conversion of units of weights and measures. It has a huge database of units, including esoteric and historical units. This for instance allows you to convert velocities specified in furlongs per fortnight, if you really wish.


The database units.dat, in plain text format, is in fact a good source of information in itself.


units has been a standard part of Unix since the early Bell Laboratories versions.


The GNU free software version is written by Adrian Mariano.


  Results from FactBites:
 
Units: A Unit Conversion Program (4549 words)
2131 units, 53 prefixes, 24 nonlinear units You have:
Dimensionless units are indicated by using the string !dimensionless for the unit definition.
Some units conversions of interest are nonlinear; for example, temperature conversions between the Fahrenheit and Celsius scales cannot be done by simply multiplying by conversions factors.
Conversion of Units of Measurement (7803 words)
Conversion of units must be done explicitly by the programmer; this can be both burdensome and error-prone, since the conversion factors used by the programmer might be entered incorrectly or might have limited accuracy.
Unit conversion may also be required in preparing data for transmission to a remote site over a network, or for use in a remote procedure call.
Conversion of units may generate extra multiplication operations; however, if the compiler performs constant folding [aho], these operations and their conversion factors can often be combined with other constants.
  More results at FactBites »


 

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