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wrayal
Bipolar (III) Inmate

From: Cranleigh, Surrey, England
Insane since: May 2003

IP logged posted posted 04-21-2007 15:43 Edit Quote

I had a maths problem proposed to me the other day by a computer scientist friend of mine. I was slightly depressed to find that I could not solve it (seeing as I'm studying maths...). I suspect they were intended to solve it by an iterative method, but I was wondering if anyone could see an analytic method for solving it? Anyway, the question was:

x^x=2.16E8

What is x?
I played quite a bit wit logarithms and so forth, but I think I may be being silly. As it happens, the answer is very close to e^e^(7/9).

Anyway, any help would be much appreciated!

Wrayal



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