symbolic functions

[rasha]

i would like to know how to evaluate symbolic expression in labview

[parthabe]

Can you be a bit clearer and more explanatory on what exactly you want to do... ?

[rasha]

i want to divide for example (x^3+x+1)by (x^2+1) ,performing long division

[parthabe]

Try the Mathscript node, if you have the PDS version of LV 8.5 or later.

Message Edited by parthabe on 05-06-2009 02:18 AM

[parthabe]

Else, you can always use the primitives in the Numeric palette for simple calculations like these.

[GerdW]

This thread is related to this one... Just to get the background

To my knowledge MathScript /Matlab is the best you can get for symbolic operations...

Message Edited by GerdW on 05-06-2009 10:47 AM

[DSPGuy]

If you want to divide polynomials then why not use the "Divide Polynomials.vi"?  This will give the quotient and remainder polynomials.  I believe the CRC algorithms utilize the remainder of the polynomial division.  If you are interested in the algorithm, just open the subVIs.  The core division algorithm is implemented in G.  Attached a VI that implements your sample problem.

-Jim

[altenbach]

LabVIEW doesn't really do symbolic math.

If you need that, you might want to look into the Maple Professional Toolbox for LabVIEW. (Sorry, I am not familiar with it).

Maybe there is also a way to use e.g. Maxima from within LabVIEW.