The pickLink checked Oct 1
Wolfram|Alpha
wolframalpha.comComputes answers to math, science and data questions
Free tierNo signup
That one website that answers math and science questions in plain English
Why it's the pick
Ask in ordinary words, from an integral to the boiling point of water at 3,000 meters, and it computes the answer from its own data and algorithms instead of returning search links. Answers are free without an account; step-by-step solutions need a Pro subscription.
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