Question: matrix multiplication error

Hi, could someone please help with this problem that i'm facing please?

This is that I have :

b2:=zeta->[-y(zeta)      -x(zeta)]%T

N0:=zeta->[(1-zeta)     (zeta)]

Basically, the first one a 1x2 matrix, second one a 2x1 matrix. I'm trying to do a dot product on it expecting a scalar answer.

I need to find : B2:=zeta->be(zeta).N0(zeta)

It takes like 5 minutes before this statement comes out : "error, (in rtable_dims) too many levels of recursion"

Thank you.

Please Wait...