July 15, 2004

A powerful bit of math trivia

If you've ever been exposed to this question, you'll consider it trivial, but I'm wondering which of my readers will get this first:

What is the only function in all of calculus that is its own derivative?

Posted by Russell Whitaker at July 15, 2004 09:19 AM | TrackBack
Comments

That would be Euler's number.

I'm not sure that I would classify that as "trivia" though.

Posted by: J. Andrew Rogers on July 15, 2004 10:16 AM

Errr, more accurately, the exponential function. Six of one, half dozen of the other.

Posted by: J. Andrew Rogers on July 15, 2004 10:17 AM

Bingo. Of course it's not "trivia", it's one of the most important - if the _the_ most important - functions in math.

I was expecting Anton Sherwood to pipe in first, but I'm delighted to see you chime in, James.

Posted by: Russell Whitaker on July 15, 2004 10:47 AM

Sorry, my bus was late.

Posted by: Anton Sherwood on July 17, 2004 07:29 PM

I think that is Advanced Chemistry or something cuz it DEFINITELY doesn't make sense to me!

Posted by: Lauren on December 20, 2004 09:04 AM
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