/sci/ - Science & Math

>>5554861
I see people using calculators get wrong answers with calculators ALL the time. Students, professionals, pretty much everywhere. If a human must presses the buttons I can guarantee there is a chance for a wrong answer to appear on the screen either from a wrong number entered, or the wrong operation being used.

Even Wolfram alpha has been known to take an entry from me and completely misunderstand what I wanted.

You also assume that you're computer is perfectly programmed, and thus will perform the operations perfectly. This is often not the case.

Tl;dr calculators have no idea what they are doing, so they need someone who knows what they are doing or else they give you a wrong answer to many points if precision.