There was a thread about that and gist was: A calculator is a great tool because it's deterministic and the failures are known (mostly related to precision); It eliminates the entire need of doing computation by hand and you don't have to babysit it though the computation process with "you're an expert mathematician..."; Also it's just a tool and you still need to learn basic mathematics to use it.
The equivalent to that is a good IDE that offers good navigation (project and dependencies), great feedback (highlighting, static code analysis,..), semantic manipulation, integration with external tooling, and the build/test/deploy process.