UNCERTAINTY CALCULATIONS USING FREE CAS SOFTWARE MAXIMA |
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| Dirk Röske |
- Abstract:
- There are many computer software packages available for the calculation of measurement uncertainties. Some are free and open source, but many are not free to use or are restricted to non-commercial use. Not in all cases, however, is it necessary or advisable to purchase and learn to use a more or less fully featured software package. Some simple calculations can be done using free spreadsheet software contained in LibreOffice or OpenOffice. Also, MS Excel is often already available on the PC.
In some other cases the calculations are not simple, especially when the partial derivatives of the model functions have to be calculated. It would then be agood idea to use a free computer algebra system (CAS). This software facilitates symbolic mathematics.
This paper shows how to use the free CAS Maxima for calculating uncertainties of the torque values realized in a torque standard machine. The tool can also be used for the independent verification of uncertainty calculation results. Some additional tools can make the use of Maxima even simpler. - Keywords:
- uncertainty calculation, computer algebra system, CAS, Maxima
- Download:
- IMEKO-TC3-2014-016.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC3
- Event name:
- TC3 Conference 2014
- Title:
22nd Conference on the Measurement of Force, Mass and Torque (together with 3rd TC22 Conference on Vibration Measurement and 12th TC5 Conference on the Measurement of Hardness)
- Place:
- Cape Town, SOUTH AFRICA
- Time:
- 03 February 2014 - 06 February 2014