Derivatives on HP 42S

08212018, 02:24 AM
Post: #9




RE: Derivatives on HP 42S
Yes, it becomes very hard to find the critical points as one gets further away from 0: f(x) approaches it's maximum of 1 over smaller and smaller intervals, requiring an impossibly tight interval to enter into the search far from zero!
Your program was just what I wanted. I was very close, but your program was what I was after. Thanks again...never was exposed to the relationship between derivatives and complex numbers before you posted several years ago! Richard 

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