See this ask.sagemath question. Apparently
sage: integrate(x^2,x,algorithm='mathematica_free')
1/3*x^3
sage: integrate(x^2,x,0,1,algorithm='mathematica_free')
1/3*x^3
so that would be useful to fix. Since it currently returns an indefinite integral when we ask for a definite one, I'll classify this as a defect.
Component: calculus
Author: Emmanuel Charpentier
Branch: 18385a7
Reviewer: Travis Scrimshaw, Frédéric Chapoton
Issue created by migration from https://trac.sagemath.org/ticket/14764