- #1
Bipolarity
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My analysis text defines inverse functions only for bijections.
But [itex] y = e^{x} [/itex] is not bijective, so according to my book it's inverse ([itex] ln x [/itex]) wouldn't be defined? Am I missing something or is my textbook just plain wrong?
I use the text by Bartle and Sherbert.
Thanks!
BiP
But [itex] y = e^{x} [/itex] is not bijective, so according to my book it's inverse ([itex] ln x [/itex]) wouldn't be defined? Am I missing something or is my textbook just plain wrong?
I use the text by Bartle and Sherbert.
Thanks!
BiP