Vsauce2

Can You INVENT a Number? Yes. #shorts

2021 • E31    Nov 30, 2021    1m
What do you do when you've got a mathematical expression that's unsolvable because the numbers you need don't exist? You do what Hero of Alexandria did: you just invent one. That's how we got the concept of imaginary numbers, which Rene Descartes derided as being totally useless. Turns out he was wrong.

#shorts

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