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Derivatives on HP 42S
08-20-2018, 03:03 AM
Post: #1
Derivatives on HP 42S
Awhile back, a gem of a way to produce d/dx using the complex number capabilities of the HP 15LE was posted. It worked wonderfully, and could be used in solve to find extremums. I am stumbling over how to implement this on my HP 42S.

I attached the image of a sample program for the HP 15LE to take d/dx of (sin x)/x and the use of it in solve. How should I accomplish this on the HP 42S?


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Derivatives on HP 42S - lrdheat - 08-20-2018 03:03 AM
RE: Derivatives on HP 42S - Thomas Klemm - 08-20-2018, 04:38 AM
RE: Derivatives on HP 42S - Thomas Klemm - 08-20-2018, 07:43 AM
RE: Derivatives on HP 42S - Albert Chan - 08-20-2018, 11:54 PM
RE: Derivatives on HP 42S - lrdheat - 08-20-2018, 10:57 PM
RE: Derivatives on HP 42S - Thomas Klemm - 08-20-2018, 11:43 PM
RE: Derivatives on HP 42S - Thomas Klemm - 08-21-2018, 12:34 AM
RE: Derivatives on HP 42S - Thomas Klemm - 08-21-2018, 01:35 AM
RE: Derivatives on HP 42S - lrdheat - 08-21-2018, 02:24 AM
RE: Derivatives on HP 42S - Thomas Klemm - 08-21-2018, 06:14 AM
RE: Derivatives on HP 42S - RMollov - 08-23-2018, 12:58 PM
RE: Derivatives on HP 42S - lrdheat - 08-24-2018, 02:51 AM
RE: Derivatives on HP 42S - Thomas Klemm - 08-24-2018, 05:52 AM
RE: Derivatives on HP 42S - lrdheat - 08-25-2018, 05:19 PM
RE: Derivatives on HP 42S - Albert Chan - 08-25-2018, 07:03 PM
RE: Derivatives on HP 42S - Thomas Klemm - 08-25-2018, 06:05 PM
RE: Derivatives on HP 42S - Thomas Klemm - 08-25-2018, 08:00 PM
RE: Derivatives on HP 42S - Albert Chan - 08-25-2018, 09:20 PM
RE: Derivatives on HP 42S - Thomas Klemm - 08-26-2018, 04:54 AM
RE: Derivatives on HP 42S - Thomas Okken - 08-26-2018, 01:54 PM
RE: Derivatives on HP 42S - lrdheat - 08-26-2018, 04:47 PM
RE: Derivatives on HP 42S - Albert Chan - 08-26-2018, 08:39 PM
RE: Derivatives on HP 42S - Thomas Klemm - 08-26-2018, 08:00 PM
RE: Derivatives on HP 42S - Albert Chan - 08-29-2018, 01:52 PM



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