@mmcdara I have edited the question post, I think I loaded the code in link form. Please tell me if you can visualize the code.

I noticed that the restart command do what I wanted.

@mehdi jafari Help me with a query please. I wrote the line command you recommended, and warning messages don't appear anymore, but now I want they to apear again, because, since I'm new using Maple, I migth be doing wrong things. How can I do this?