[solved] COLLECT bug? (10637)

[DrD]

To avoid any possible conflict with the variable e, (epsilon or ln) if you change variable e to f, instead, the last optional form (from the collect() help doc's, for a list of expressions, with respect to a variable), doesn't work, either:

collect({a*b+a*c,a*d+a*f+d*f},a); ==> [a*(b+c)+d+f,d*f]

Interestingly, if you bring the Ans (above) to the command line, it displays:

poly1[a*(b+c)+d+f,d*f]

-Dale-