Hi,
I think that the distinction between
def f(x):
return x^2
and
f(x) = x^2
is a common source of confusion, and everyone will run into it when trying
to define piecewise functions. It would be possible to introduce a
decorator, say @symbolic_function, that makes sure that
@symbolic_function(x)
def f(x):
return x^2
makes f a symbolic function. I've done just that in this published
worksheet:
http://www.sagenb.org/home/pub/4919
As you can see, it works with piecewise functions, too. Of course, it
should probably do something sane with multiple variables, class methods,
etc, but it seems possible.
I can probably produce a patch for this, but I would like some feedback
first.
Best regards,
Timo Kluck
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