I have not found anything in the corresponding help page and mouse over does not work.

In a video (watch from 7 min onwards) I have seen the definition of solution types in custom components. Is this possible in newer versions of MapleSim using the custom component app? If yes, how?

When defining 2 frames as shown here

only one additional port is shown in the workspace. Mouse over indictes an array of 2 ports.

I could not find any examples or explanations how to connect to an array of frames.

Can someone connect two ridig body frames to it?

Box.msim

I am searching for high level commands or techniques to show equality of expressions containing square roots that can be complex as here

In an ideal world is() with the right assumptions should show equality. However, in the attached example, I failed already with my manual skills.

What did I miss here?

Equality_of_exp_with_complex_roots.mw

I was searching for an “uneval” command that returns an expression unevaluated (as Maple returns an output). In the attached example I am using eval which works in this instance since the integral is entered in an inert form.
 

Since the use of eval to obtain something unevaluated is somehow confusing (and might not work in all instances): Is there a better way than to use eval?

Download expr_equals_evalexpr.mw