The UDUNITS package supports units of physical quantities (e.g., meters, seconds). Specifically, it supports conversion between string and binary representations of units, arithmetic manipulation of units, and conversion of numeric values between compatible units. The UDUNIT-2 package differs from the original UDUNITS package in the following ways: support for non-ASCII characters, support for logarithmic units, persistent value converters, improved API, XML unit database, and no Fortran or Perl API.
The UDUNITS package supports units of physical quantities (e.g., meters, seconds). Specifically, it supports conversion between string and binary representations of units, arithmetic manipulation of units, and conversion of numeric values between compatible units. The UDUNIT-2 package differs from the original UDUNITS package in the following ways: support for non-ASCII characters, support for logarithmic units, persistent value converters, improved API, XML unit database, and no Fortran or Perl API.
To install udunits2, run the following command in macOS terminal (Applications->Utilities->Terminal)
sudo port install udunits2
To see what files were installed by udunits2, run:
port contents udunits2
To later upgrade udunits2, run:
sudo port selfupdate && sudo port upgrade udunits2
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