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Hp50g emu : graph abs(x)^3 gives negative y-values
12-12-2020, 02:33 PM
Post: #5
grsbanks Offline
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RE: Hp50g emu : graph abs(x)^3 gives negative y-values
Can it be classified as a bug when it's there for all to see in the documentation?

Quote:-119 Rigorous mode
Clear: Rigorous mode on: |X| is not simplified to X
Set: Rigorous mode off: |X| is simplified to X

Page C-8 of the AUR.

Why one would want to simplify \(abs(x)\) to \(x\) in the first place is another matter. It does simplify things if you know that \(x\) is always going to have the same sign in the domain you're looking at, but if that is the case then why consider \(abs(x)\) in the first place...
There are only 10 types of people in this world. Those who understand binary and those who don't.
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RE: Hp50g emu : graph abs(x)^3 gives negative y-values - grsbanks - 12-12-2020 02:33 PM



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