For better explanation I have done the simplification in MatCad where unassigned variables are seen as symbols in sympy.
<https://lh4.googleusercontent.com/-uq82CF7JYZw/UijhDNbjPvI/AAAAAAAAAAM/bPAnd8PQSpI/s1600/simplify+with++arrays.tiff> Am Donnerstag, 5. September 2013 15:19:14 UTC+2 schrieb david: > > I have explored the sympy features and i was very impressed with both the > amount of features and the ease of testing with the doc and the coupled > Live Shell. > I want to write a programm that simplifies expressions as much as possible > to minimize calculation time because they will later be numericaly > evaluated very often. > The most features I need work very well. But with arrays I have a problem. > I need to define an array object as an symbol, so that the following is > possible: > > simplify(2.0*2.0*t[0]) > is simplified to: > 4.0*t[0] > > and: > idx = 2 > simplify(2.0*2.0*t[idx]) > shold be simplified to: > 4.0*t[2] > > Is there any way to do this? > > david > -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. For more options, visit https://groups.google.com/groups/opt_out.
