In PyDy (which we plan to merge into SymPy.physics.classical this summer) Vector is one of the classes already implemented (along with UnitVector). Vectors extend Basic, and UnitVector extend Expr. The way it works now, you can't use Vector as part of a SymPy expression: In [57]: test Out[57]: x*n1> + x*a1> In [58]: x*test*x Out[58]: x**2*x*n1> + x*a1>
Do people want to be able to use Vector (which comes with dot, cross, outer products, and derivative (between reference frames) functions implemented) in SymPy expressions? Or is it the type of thing no one really wants? I'm looking forward to getting to work on PyDy & SymPy this summer. -Gilbert -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
