subst command in RPN mode (bug ?)

[Marcelo Vanti]

(08-12-2015 10:24 PM)Didier Lachieze Wrote:  It works as long as q is not defined. But if you create q, for ex by storing 0 to q then the subst command will return 0 as 2*q will be evaluated to 0 before the substitution can be done. To pass 2*q to the CAS for the substitution you need the single quotes inside the double quotes, or two levels of single quotes.

You're right. I did not know the possibility of working with single quotes within double quotes, for replacement. Thanks for the tip.