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Prime just returns the entered function
12-07-2022, 08:25 PM (This post was last modified: 12-07-2022 08:26 PM by RickyFlips.)
Post: #1
Prime just returns the entered function
When I enter certain functions involving unspecified variables, my expectation is that the Prime will return a simplified version of the function or an interim result, but instead my Prime returns the function as-entered (CAS) or 0 (Home). Examples:

   

What I'd expect returned is the function simplified: -2.5*e^(-50*x) + 6.25*e^(-10*x)

   

What I'd expect here is an interim result, like: ln[b] - ln[a]

I've tried the "simplify" soft button, as well as the different "Simplify" settings, and I've searched both Google and here, but haven't found an answer yet. This would be immensely helpful, since simplifying by hand is commonly where I make a mistake. So, is there a way to get my Prime to do this?

Thanks!
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12-07-2022, 10:43 PM
Post: #2
RE: Prime just returns the entered function
Run "exact()" or press the decimal to fraction button and then it'll simplify.
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12-08-2022, 04:59 AM
Post: #3
RE: Prime just returns the entered function
[Image: cas_settings.png]
[Image: int.png]

Prime G2, 15C CE
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12-08-2022, 08:11 PM
Post: #4
RE: Prime just returns the entered function
(12-07-2022 10:43 PM)phobos Wrote:  Run "exact()" or press the decimal to fraction button and then it'll simplify.

Thank you! That works for the integral, but doesn't for simplifying the first function. Any ideas about that?
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12-08-2022, 08:12 PM
Post: #5
RE: Prime just returns the entered function
(12-08-2022 04:59 AM)chromos Wrote:  [Image: cas_settings.png]
[Image: int.png]

Thank you! That works for the integral, but doesn't for simplifying the first function. Any ideas about that?
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12-08-2022, 09:00 PM
Post: #6
RE: Prime just returns the entered function
[Image: yF6Hc9m.png]
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12-08-2022, 09:04 PM
Post: #7
RE: Prime just returns the entered function
I didn't know about 'normal' and it's exactly what I was looking for, thank you!
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12-11-2022, 04:58 PM
Post: #8
RE: Prime just returns the entered function
@ phobos, Thanks for comparison image

HP Prime G1
Python via Android Termux...
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