From: Jan Simon on
Dear mat001!

> can some one help me to understand this
>
> Name Size Bytes Class Attributes
> A 1x4x2 64 double
> B 1x4x2 64 double
> C 5x2x6 480 double
> D 3x2x6 288 double
>
> E = A+B+C+D
>
> its comes with error
> why the error is? and how I can check the problem and how to solve this

A general advice: If you post in this newsgroup, that there is an error, please add a copy of the error message and the corresponding line of code.
In almost all cases the error message tells exactly what the problem is and helps to solve it.

It is hard to help you to solve the problem, when you do not mention, what your actual goal is. Please explain what you want A+B+C+D to be.

Kind regards, Jan