Hello, I switched from numarray to numpy and I have now some "NaN" in my matrix. What that means ? None a numeric ? regards
Jean-Luc REGNIER ACR Mimarlik Ltd. Sti Savas Cad. 26/B Sirinyali ANTALYA, TURKEY Tel. & Fax: 0090-(0).242.316.08.09 GSM: 0090-0.532.303.36.21 http://www.acrmim.com
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It's "Not A Number". It can occur when you have a division by zero, a difference between two infinite numbers, ...
Matthieu
2007/12/10, Jean-Luc Régnier jean_lucregnier@yahoo.fr:
Hello, I switched from numarray to numpy and I have now some "NaN" in my matrix. What that means ? None a numeric ? regards
Jean-Luc REGNIER ACR Mimarlik Ltd. Sti Savas Cad. 26/B Sirinyali ANTALYA, TURKEY Tel. & Fax: 0090-(0).242.316.08.09 GSM: 0090-0.532.303.36.21 http://www.acrmim.com
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many thanks for answering Matthieu Actually my problem concerned the old command "matrixmultiply" vs "dot". I solved it now. However I have a question regarding Tkinter. I am doing a small 3D engine using Tkinter, Pmw and, numpy. I am basically plotting the result from the matrix calculation on the Tkinter canevas and it appears to be relatively slow depending on the processor. I did a test on two different PC. Is there someone here who has experienced such problem ? It looks like the Tkinter canevas needs time to react with my bindings Vpython for instance is really fast whatever the PC. Should I use Wxpython instead of Tkinter ? Best regards Jean-Luc
It's "Not A Number". It can occur when you have a division by zero, a difference between two infinite numbers, ...
Matthieu
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Jean-Luc Régnier -
Matthieu Brucher