# OpenMath Content Dictionary: SI_BaseQuantities

Canonical URL:
http://www.openmath.org/cd/SI_BaseQuantities.ocd
CD File:
SI_BaseQuantities.ocd
CD as XML Encoded OpenMath:
SI_BaseQuantities.omcd
Defines:
amount-of-substance, current, length, luminous-intensity, mass, one, temperature, time
Date:
2010-08-25
Version:
2 (Revision 2)
Review Date:
2017-12-31
Status:
experimental


This document is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

The copyright holder grants you permission to redistribute this
document freely as a verbatim copy. Furthermore, the copyright
holder permits you to develop any derived work from this document
provided that the following conditions are met.
a) The derived work acknowledges the fact that it is derived from
this document, and maintains a prominent reference in the
work to the original source.
b) The fact that the derived work is not the original OpenMath
document is stated prominently in the derived work.  Moreover if
both this document and the derived work are Content Dictionaries
then the derived work must include a different CDName element,
chosen so that it cannot be confused with any works adopted by
the OpenMath Society.  In particular, if there is a Content
Dictionary Group whose name is, for example, math' containing
Content Dictionaries named math1', math2' etc., then you should
not name a derived Content Dictionary mathN' where N is an integer.
However you are free to name it private_mathN' or some such.  This
is because the names mathN' may be used by the OpenMath Society
for future extensions.
compilation of derived works, but keep paragraphs a) and b)
intact.  The simplest way to do this is to distribute the derived
work under the OpenMath license, but this is not a requirement.
society at http://www.openmath.org.

Author: Joseph B. Collins (2009), Naval Research Laboratory, Washington, DC.
Copyright Notice:  This is a work of the U.S. Government and is not
may apply.


  Author: J B Collins


This CD defines symbols which represent the seven base quantities of the SI (Syst\'{e}me International) system of quantities for describing quantity dimensions. (DRAFT INTERNATIONAL STANDARD ISO/DIS 80000-1 - "Quantities and units", 2008)

## one

Role:
constant
Description:

This symbol represents the proposed SI base quantity of dimension one, or the dimensionless quantity. It has the short symbol form, "1".

Signatures:
sts

 [Next: length] [Last: luminous-intensity] [Top]

## length

Role:
constant
Description:

This symbol represents the SI base quantity of length. It has the short symbol form, "L".

Signatures:
sts

 [Next: mass] [Previous: one] [Top]

## mass

Role:
constant
Description:

This symbol represents the SI base quantity of mass. It has the short symbol form, "M".

Signatures:
sts

 [Next: time] [Previous: length] [Top]

## time

Role:
constant
Description:

This symbol represents the SI base quantity of time. It has the short symbol form, "T".

Signatures:
sts

 [Next: current] [Previous: mass] [Top]

## current

Role:
constant
Description:

This symbol represents the SI base quantity of electrical current. It has the short symbol form, "I".

Signatures:
sts

 [Next: temperature] [Previous: time] [Top]

## temperature

Role:
constant
Description:

This symbol represents the SI base quantity of thermodynamic temperature. It has the short symbol form, "\Theta;".

Signatures:
sts

 [Next: amount-of-substance] [Previous: current] [Top]

## amount-of-substance

Role:
constant
Description:

This symbol represents the SI base quantity of amount of substance. It has the short symbol form, "N".

Signatures:
sts

 [Next: luminous-intensity] [Previous: temperature] [Top]

## luminous-intensity

Role:
constant
Description:

This symbol represents the SI base quantity of luminous intensity. It has the short symbol form, "J".

Signatures:
sts

 [First: one] [Previous: amount-of-substance] [Top]