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Thank Michael for your reply...i executed one cell at a time or evaluated the whole notebook but the same eror or nothing happening...at this point I think the problem is my computer...I hope that tomorrow turning it on the teacher's computer will...
Hello everyone…I'm here again to ask for help... last time you helped me and for this I thank you... using the finite element method (FEM)... I need some tips.. - I have to set “omega” which should be the seventh eigenvalue calculated with...