Re: Finding extremums of function with complex derivate Message #3 Posted by Crawl on 15 Oct 2011, 10:55 a.m., in response to message #2 by Allen
I think the URL you pasted didn't work right,how about this?
Yeah, the exponential will be of the form (cos(t)+isin(t)).
So that plus 1 has a maximum absolute value when it equals 2. (when t=0, 2pi, 4pi, etc)
So you need to solve for (x+3.1e6)/x = an integer.
Or x = 3.1e6/(n1), with n an integer.
I'm not sure why it seems like the derivative is complex; it shouldn't be. I'd have to check what the HP50g gives for that later.
Edited: 15 Oct 2011, 10:58 a.m. after one or more responses were posted
