Plot derivative of an ABS( function ) fails (RESOLVED)
04-28-2015, 04:54 PM
Post: #9
 CR Haeger Member Posts: 275 Joined: Dec 2013
RE: Plot derivative of an ABS( function ) fails (RESOLVED)
(04-28-2015 03:58 PM)StephanP Wrote:  Yes, SLOPE(F1,X) works.
I did find that other thread, but as I was experiencing crashes using slope() (lowercase from the Catalog), I went for the d/dx method. This seemed to work fine, apart from the ABS() case.
Still it's a bit confusing, these variants of slope() and SLOPE(). I had to type it manually.

Thanks CR, Tim.

Toolbox > App > Function > SLOPE is what I use while in the Function App.

Another interesting way to key this into CAS and send to Function App:

f(x):= |X^2 -10X +21|
F1:=f
F2:=f'

which defines f(x), F1 as f(X) and F2 as f'(X). Hit Plot and it should display ok.
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 Messages In This Thread Plot derivative of an ABS( function ) fails (RESOLVED) - StephanP - 04-27-2015, 12:29 PM RE: Plot derivative of an ABS( function ) fails - StephanP - 04-28-2015, 12:25 PM RE: Plot derivative of an ABS( function ) fails - rprosperi - 04-28-2015, 01:28 PM RE: Plot derivative of an ABS( function ) fails - ww63 - 04-28-2015, 01:58 PM RE: Plot derivative of an ABS( function ) fails - CR Haeger - 04-28-2015, 02:19 PM RE: Plot derivative of an ABS( function ) fails - Tim Wessman - 04-28-2015, 02:27 PM RE: Plot derivative of an ABS( function ) fails - StephanP - 04-28-2015, 03:58 PM RE: Plot derivative of an ABS( function ) fails (RESOLVED) - Tim Wessman - 04-28-2015, 04:45 PM RE: Plot derivative of an ABS( function ) fails (RESOLVED) - CR Haeger - 04-28-2015 04:54 PM

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