# Direc­tory `macros/latex/contrib/SIunits`

README
```The SIunits package - Consistent application of SI units

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Maintained by Joseph A. Wright
E-mail: joseph.wright@morningstar2.co.uk
Originally developed by Marcel Heldoorn
(c) 2000-2002 Marcel Heldoorn
(c) 2007 Joseph Wright
Released under the LaTeX Project Public license v1.3 or later
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The Systeme International d'Unites (SI), the modern form of the
metric system, is the most widely used system of units and measures
around the world. But despite this there is widespread misuse of the
system with incorrect names and symbols used as a matter a course -
even by well educated and trained people who should know better. For
example how often do we see: mHz, Mhz or mhz written when referring
to computer clock rates? The correct form is actually MHz. Note
the capitalisation does matter.

Hence, a clear system for the use of units is needed, satisfying the
next principles:
1) the system should consist of measuring units based on unvariable
quantities in nature;
2) all units other than the base units should be derived from these
base units; and
3) multiples and submultiples of the units should be decimal.

The name Systeme International d'Unites (International System of
Units) with the international abbreviation SI was adopted by the
Conference Generale des Poids et Mesures (CGPM) in 1960. It is a
coherent system based on seven base units (CGPM 1960 and 1971).

The SIunits package can be used to standardise the use of units in
your writings.  Most macros are easily adaptable to personal
preferences. However, you are welcome to suggest any improvements.
```

Down­load the con­tents of this pack­age in one zip archive (289.4k).

## siu­nits – In­ter­na­tional Sys­tem of Units

Type­set phys­i­cal units fol­low­ing the rules of the In­ter­na­tional Sys­tem of Units (SI).

The pack­age re­quires am­s­text, for proper rep­re­sen­ta­tion of some val­ues.

Note that the pack­age is now su­per­seded by siu­nitx; siu­nits has main­te­nance-only sup­port, now.

 Pack­age siu­nits Ver­sion 1.36 Li­censes The LaTeX Project Public Li­cense 1.3 Copy­right 2007 Joseph Wright Main­tainer Joseph WrightMar­cel Hel­doorn (in­ac­tive) Con­tained in TeX Live as SIu­nitsMiKTeX as siu­nits Topics Type­set­tingSci­en­tific docs See also SIstyle