Hi, I'm a new user to Maxima and I would like to know if there's a function
which can tell me if an output is a number or an expression. For example, if
I use the command diff(exp,variable,2); then, I can get either a number, or
a polynomial expression. I want to know if there's a function that can
return a true or false in this situation.
Thanks for your time,
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Wascar Bocangel