Vitalik Buterin pfp
Vitalik Buterin
@vitalik.eth
So many people in the replies here are totally missing the point. Yes, there is an infinite number of valid possible answers for i^i. But EVERY SINGLE ONE OF THEM IS A REAL NUMBER. https://x.com/mathladyhazel/status/1800905395961241811
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Idan Levin 🎩 pfp
Idan Levin 🎩
@idanlevin
I think about it like this: i is a number in 2D, and some operations on it end up in one axis (the real axis in this case). If you visualize it, it is easier. Although you started with a number or a vector on 2D, this specific operation lands on 1D always
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0 recast
2 reactions

Vitalik Buterin pfp
Vitalik Buterin
@vitalik.eth
i^x = rotation (counterclockwise) ^i = "take the operation you were doing, and rotate *that operation itself* by another 90 degrees counterclockwise Hence i^i = move along the vector going counterclockwise along the circle, rotated another 90 degrees = move along the vector going direct toward the origin
1 reply
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15 reactions