<Eric.Le.Bigot <at> spectro.jussieu.fr> writes: > > Hello, > > Is there a way to easily build an object that behaves exactly like a > float, but whose value can be changed? The goal is to maintain a list > [x, y,…] of these float-like objects, and to modify their value on the > fly (with something like x.value = 3.14) so that any expression like "x > +y" uses the new value. >
Have you looked at sympy (http://code.google.com/p/sympy/)? It implements symbolic mathematics so you can define the equations & put in the values to get the result. You should be able to derive from the Symbol class to implement the accuracy behavior. Regards, Suraj -- http://mail.python.org/mailman/listinfo/python-list
