Unable to display symbolic object because 'symengine' was reset

I am trying to solve the equation Mbtsub=vpa(subs(-inv(sig)*der+b0, b, b0'))

after 30 min of computation, I get the following error:

Warning: Unable to display symbolic object because 'symengine' was reset. Repeat commands to regenerate result

what should I do?

Answer 1

[Walter Roberson]

You install more RAM. You are running out of memory during the symbolic computation.

You should probably be using sig\der instead inv(sig)*der

[Zahra Ziaei]

They are all matrices

[Walter Roberson]

I would have been more concerned if you were running out of memory doing calculations with scalars.

[Adrians]

I have 32 gigs of ram. What do you mean???