Hi all,
I'm pretty new to sympy. I'm wondering whether it's possible to manipulate
expressions with vector dot products without sympy trying to actually
evaluate the dot product. Let's say A and B are vectors; I want the
expression A * B to simply be A * B, not a1*b1 + a2*b2 + a3*b3. I can't
simply use:
A, B = symbols('A B')
and carry them around in expressions that way because I want to *avoid*
simplifications like (C is another vector): A * B / (A * C) = B / C
My full expressions contain many scalars as well as dot products; I want to
allow scalar simplification, e.g. I *want* x*y / x*z = y / z, while
avoiding incorrect vector simplifications like the possibility above.
I hope that this is not too strange or stupid of a question!
Alex
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