The function $$f(x )= x \operatorname e^{|x|} $$has an interesting semi-sigmoid shape. However, it is somehow a "horizontal" sigmoid. I would like to know the function of the vertical equivalent. So what is the inverse of this function?
2026-04-01 21:34:52.1775079292
What is the inverse of $f(x )= x \operatorname e^{|x|}$?
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