-
×InformationFix Windows 10 Update Issues
Resolve Windows 10 related issues for your HP computers or printers by HP Windows 10 Support Center
-
-
×InformationFix Windows 10 Update Issues
Resolve Windows 10 related issues for your HP computers or printers by HP Windows 10 Support Center
-
- HP Community
- >
- Other Products
- >
- Calculators
- >
- Limes (lim, limit) sometimes only works with fractions, not ...
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Mute
- Printer Friendly Page

Create an account on the HP Community to personalize your profile and ask a question

Solved!
Limes (lim, limit) sometimes only works with fractions, not with decimals.
10-11-2018 01:03 AM

As you can see in the picture below, if you use a decimal number as limit (here 2.5) then the result will be undefined.
If you instead use 25/10, you will get the correct answer.
This is confusing. Because for the last operation with 1/x, decimal numbers are obviously working (2.1)
Is there a good reason for this behavious?
Would it make sense, that the HP-Team would implement to use the exact() function behind the lim for the x->value?
Thanks.
Solved! Go to Solution.
10-11-2018 01:42 AM

Doing something like converting input always to "exact" while mostly good behavior, could definititely be detrimental in other cases.
The general rule simply remains, while in the CAS avoid doing any approximations until any final step in an operation. That matches pretty well with what I was explained back in my school days from pretty much any professor too... 🙂
To quickly do this yourself, tap the history item once in the CAS (so the limit is selcted) and then press A B/C key. That throws "exact" around your expression for further evaluation.
Although I work for the HP calculator group as a head developer of the HP Prime, the views and opinions I post here are my own.
10-11-2018 06:32 PM

It is described in the a b/c key and CAS sections I beleive already...
Glad you like it. That is why I designed it that way.
Although I work for the HP calculator group as a head developer of the HP Prime, the views and opinions I post here are my own.
Didn't find what you were looking for? Ask the community