Oscar,
That does seem to do what I want ... I think.
What's the difference between this and Chris Smith's answer? I think I
made a symbolic equation between symbols. Didn't you make a *pythonic*
assignment? Then python did the right thing when using the multiplication
operation '*' (by overloading?)
I took things a little farther:
q,r,s = symbols('q r s')
q = x+y
r = x*y
print(q*r)
q*r
s = q*r + 1
s
s.subs(x,3)
Everything worked. Is it the case that I made things overly complicated
from the beginning? I'm confused. I don't know how Sympy works, and would
appreciate a better description than the tutorial.
Thanks.
On Saturday, July 13, 2019 at 7:00:32 AM UTC-4, Oscar wrote:
>
> Hi Gary,
>
> I wonder if we are overcomplicating things here. Does this do what you
> want?
>
> x, y = symbols('x, y')
> a = x + y
> b = x * y
> print(a * b)
>
> --
> Oscar
>
> On Tue, 9 Jul 2019 at 03:11, Gary Pajer <gary...@gmail.com <javascript:>>
> wrote:
> >
> > I'm sure I'm not the first person having trouble getting started. If
> there is a good tutorial, more detailed than the sympy docs tutorial,
> please point me to it!
> >
> > I want to display the product of two expressions. Suppose I have
> >
> > a, b, x, y = symbols('a b x y')
> > ex1 = Eq(a, x + y)
> > ex2 = Eq(b, x * y)
> >
> > How do I display a * b in terms of x and y?
> >
> > Thainks.
> >
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