long series terms in symbolic calculations

Forum|Forum|10 years ago
January 15, 2016
4 replies
2552 views

Hi everyone,

I am using mathcad version 8 to do a symbolic calculations. I am getting good results until my results that are in series exceeds a certain number of terms. For example, I am taking a product of two series and integrate them to get the results or Aseries times Bseries = Cseries then Integral of Cseries = Results. I am getting results when Results series are up to 8 terms. However when Aseries and Bseries have more series terms, when trying to calculate the Results I am getting the error message saying that "results are too large for the screen" and it does not display results. Sometimes Mathcad shuts down unexpectedly. I tried a trick by letting D = Results and defining E = Result series in 6 terms and it displays then E up to 6 terms. Then to find other terms I tried F = D - E but it failed by displaying error message or shutting down unexpectedly. Does any one knows a work around this problem or some kind of trick.....Thanks.

Calculus_Derivatives

R

RichardJ

19-Tanzanite

Using single letter variable names helps.

You could also try changing a setting in the registry:

[HKEY_CURRENT_USER\Software\MathSoft\Mathcad\Preferences]

"NODE_DISPLAY_LIMIT"=dword:00002320

That worked for Mathcad 11 under Win 2000. I don't know if it will work for Mathcad 8 under whatever OS you are running. You mess with the registry at your own peril. Make a registry backup first. Also create a Windows restore point first.

L

LucMeekes

23-Emerald IV

From my experience: It works for Mathcad 11 under any OS that it runs on (also Win10).

I don't know about other versions of Mathcad. I have a hunch that it works for 2001i, and I think it does NOT work for Mathcad 15.

You can set the NODE_DISPLAY_LIMIT value to any (larger or smaller) value, depending on the size you need. Lower values will trigger the message "Result is too large to display, try using the submatrix function" sooner.

Luc