The floating point numbers represent the other part of the expression. This part can be simplified and is more complex in reality. All I want is to mark some array objects as symbols. So that they are not recognized as numbers.I have tried the indexed object but I did not succeed.
Am Donnerstag, 5. September 2013 18:47:51 UTC+2 schrieb Aaron Meurer: > > Floating point numbers will automatically combine without the use if > simplify. If you want an indexed object, look at Indexed > http://docs.sympy.org/latest/modules/tensor/indexed.html<http://docs.sympy.org/0.7.3/modules/tensor/indexed.html?highlight=indexed> > . > > Aaron Meurer > > On Sep 5, 2013, at 8:09 AM, david <[email protected]<javascript:>> > wrote: > > 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.
