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FailingBetter
Level 2
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HP Prime noob questions

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New user of the HP Prime calculator.  I'm running into several problems that I haven't found answers to in the User Guide or elsewhere, so any help would be greatly appreciated!

 

When I enter a derivative in either normal mode or CAS mode, like diff(x^2*(15/6x)-x,x it's just returned in the form of the product rule, but I expect the calculator to return the derivative, 5/2 – 3x^2.  How do I get the calculator to finish deriving it?

 

When I enter an implicit derivative:  implicit_diff(xy) or implicit_diff(xy,x,y) it returns either "Error: Syntax Error" or "Error: Bad Argument," with no further explanation.  What am I doing wrong?

 

Is there a quicker way to access diff() and implicit_diff() than scrolling/searching the catalog?

 

I get the "Error: Syntax Error" a lot.  How can I find out what I'm doing wrong in each instance?  The built-in Help function doesn't help.

 

When I enter a derivative, the calculator echos it as (expression)' with a tick indicating it's taking the derivative, but it won't allow me to use this syntax when entering a derivative, which would be much faster than via the catalog.

 

Thank you all!

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Maké
Level 9
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Hi!, FailingBetter :

1) See, the image ...

diff_1.PNG

2) For ...  implicit_diff(xy) or implicit_diff(xy,x,y) ... see the solution from user @BartdB from ... https://h30434.www3.hp.com/t5/Windows/HP-Prime-Emulator/td-p/7161969

3) Only you can find the  implicit_diff from Catalog.

Kind Regards !.
Have a nice day !.
@Maké (Technical Advisor Premium - HP Program Top Contributor).
Provost in HP Spanish Public Forum ... https://h30467.www3.hp.com/
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