Arnaud, your code is very interesting! On Apr 15, 1:00 pm, Arnaud Delobelle <arno...@googlemail.com> wrote: > I still don't understand why you need mutable floats.
Here is why: the code that your proposed (or any code that does straightforward error propagation, for that matter) does not generally calculate uncertainties correctly: >>> a=Value(1, 0.1) >>> a-a 0.0 +- 0.14142135623823598 The correct result is obviously 0.0 +- 0.0. This is the effect of what I referred to in previous posts as "correlated errors". Anyway, I learned some interesting stuff about what you can do in Python, thanks to your code! :) -- http://mail.python.org/mailman/listinfo/python-list
