Thank you very much, works perfectly!

Thank you very much - it does work perfectly!

HI Joe,

right, I try to explain it better. ;-)

I have some variables (all numerical integers), for some physical or chemical characteristics. For example the Density (-->rho). Than I have several compounds. For example "a" and "b".

That's why I have  (in this example) two variables (numerical integers). One is called

rho_a (a is in the index)

rho_b (b is in the index)

In the old syntax is was no problem. But in the 2d Math, it changes from "numeric integer" to "table table" at the moment you add an index to the "rho".

The problem is: I have a lot of variables. For these two I could change the name. But for all, you would get really confused.