That's why we use different tools when teaching/learning something vs. doing real work. Another example is computer algebra systems like Mathematica. It would

That's why we use different tools when teaching/learning something vs. doing real work. Another example is computer algebra systems like Mathematica. It would be self-sabotage to use them on your calculus homework, but they're indispensable to the working mathematician, physicist, or engineer, whose time is wasted doing routine calculations by hand.