Hi Mr Ondrej, >Do you know an algorithm for calculating the thing you want? If so, let's >implement that in sympy. No, unfortunately I don't know.
>So for example you can compare lists with something like: In [2]: m = [x, y, z+z] In [3]: l = [x, y, 2*z] In [6]: m == l Out[6]: True In your example here, you specify concretely the elements of your lists, but what I want is to deal with symbolically with lists (by symbolic I mean without specifying the concrete contents or the length of the list)!So how to do that? Is sympy able to solve something like this: when i have j<N and i==j+1 the result would be i==N . Could sympy solve this system of equations: xP = 1 + a/yP and |yP-xP| <= epsilon, without fixing the value of epsilon. Olfa. On 27 déc, 12:19, "Ondrej Certik" <[email protected]> wrote: > On Sat, Dec 27, 2008 at 12:22 AM, olfa <[email protected]> wrote: > > > except for nested functions, could you tell me how can I express in > > sympy syntax the other equations of my example such the lists and > > arrays? > > SymPy is just a Python library, so if you don't know Python yet, you > can learn it here: > > http://docs.python.org/tutorial/ > > I greatly recommend that, I am sure you'll find it useful. Then you > just plug the expressions into our solver, see the examples I posted > in my first email. So for example you can compare lists with something > like: > > In [2]: m = [x, y, z+z] > > In [3]: l = [x, y, 2*z] > > In [6]: m == l > Out[6]: True > > What is your real application of this? > > Ondrej --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sympy?hl=en -~----------~----~----~----~------~----~------~--~---
