Is there a closed form for $x^x = y$ (for positive real numbers)?
I'm not sure if this has been answered already; google search doesn't do well with symbols so its hard for me to search this up.
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Hint : Use Lambert W. – MH.Lee Jan 11 '22 at 02:53
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1duplicate: https://math.stackexchange.com/questions/2968487/inverse-of-xx-using-lambert-w-function – cineel Jan 11 '22 at 03:02
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yep the duplicate is what I was looking for – Joe C. Jan 11 '22 at 03:03
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https://math.stackexchange.com/questions/1035539/can-xxx-k-be-solved-using-the-w-function (this is about power tower of x) – cineel Jan 11 '22 at 03:13