I have question can HP Prime Solve these two functions?
05-12-2020, 12:39 AM
Post: #21
 tom234 Member Posts: 92 Joined: Aug 2016
RE: I have question can HP Prime Solve these two functions?
(05-11-2020 10:18 PM)pinkman Wrote:  Numerical and symbolic solve. Still don’t understand what’s wrong.

The 5 Key in algebraic mode put down [ ].
However, in Text mode it does Matrix?
I don't think this is right?

It did not do that before?

so I have to solve everything in the algebraic entry if I want to use those [ ].
05-12-2020, 12:52 AM
Post: #22
 tom234 Member Posts: 92 Joined: Aug 2016
RE: I have question can HP Prime Solve these two functions?
(05-11-2020 10:18 PM)pinkman Wrote:  Numerical and symbolic solve. Still don’t understand what’s wrong.

Ok, I used the Brackets on the 5 Key and got the answer you got but there is a small square with a dot in the middle right of entry like one when you put in a power sign like y^3.
But it works now is that normal. I will just ignore the dot.
This software changes so much.
05-12-2020, 12:54 AM
Post: #23
 rprosperi Senior Member Posts: 5,008 Joined: Dec 2013
RE: I have question can HP Prime Solve these two functions?
(05-11-2020 10:18 PM)pinkman Wrote:  Numerical and symbolic solve. Still don’t understand what’s wrong.

Don't you need commas between the 2 equations?

--Bob Prosperi
05-12-2020, 03:27 AM
Post: #24
 tom234 Member Posts: 92 Joined: Aug 2016
RE: I have question can HP Prime Solve these two functions?
(05-12-2020 12:54 AM)rprosperi Wrote:
(05-11-2020 10:18 PM)pinkman Wrote:  Numerical and symbolic solve. Still don’t understand what’s wrong.

Don't you need commas between the 2 equations?

when he entered the equation He put them in. the Solves answers without putting them me.
HP Prime wrote the answer without comas.
05-12-2020, 06:17 AM (This post was last modified: 05-12-2020 06:18 AM by pinkman.)
Post: #25
 pinkman Senior Member Posts: 389 Joined: Mar 2018
RE: I have question can HP Prime Solve these two functions?
In Texbook entry mode you’re invited to fill a matrix with the placeholders (dots in small squares) and the + signs to add rows or columns. Inserting a coma will only move the cursor to the next placeholder.
In Algebraic entry mode you need a comma to separate the entries.

In both case the stack represents them without a comma.

I think what puzzled you is that I did not write any commas in my first answer fsolve([eq1 eq2], [x y])

The help sections for fsolve and solve are a bit confusing, especially the one for solve because it doesn’t mention the ExpVector form of the command, even if an example with 3 equations involving x, y and z as variables is given.

PS (off topic): I sometimes write “numerical solution”, and sometimes “numeric solution”. What’s the right word?
05-12-2020, 06:42 AM
Post: #26
 CyberAngel Member Posts: 296 Joined: Jul 2018
RE: I have question can HP Prime Solve these two functions?
(05-12-2020 06:17 AM)pinkman Wrote:  X
PS (off topic): I sometimes write “numerical solution”, and sometimes “numeric solution”. What’s the right word?

numerical
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VPN
05-12-2020, 11:16 AM
Post: #27
 roadrunner Senior Member Posts: 364 Joined: Jun 2015
RE: I have question can HP Prime Solve these two functions?
fyi:

Attached File(s) Thumbnail(s)

05-12-2020, 01:15 PM
Post: #28
 tom234 Member Posts: 92 Joined: Aug 2016
RE: I have question can HP Prime Solve these two functions?
(05-12-2020 06:17 AM)pinkman Wrote:  In Texbook entry mode you’re invited to fill a matrix with the placeholders (dots in small squares) and the + signs to add rows or columns. Inserting a coma will only move the cursor to the next placeholder.
In Algebraic entry mode you need a comma to separate the entries.

In both case the stack represents them without a comma.

I think what puzzled you is that I did not write any commas in my first answer fsolve([eq1 eq2], [x y])

The help sections for fsolve and solve are a bit confusing, especially the one for solve because it doesn’t mention the ExpVector form of the command, even if an example with 3 equations involving x, y and z as variables is given.

PS (off topic): I sometimes write “numerical solution”, and sometimes “numeric solution”. What’s the right word?

It depends haven't seen examples of either from you to say that one is right or wrong.
I would say a numerical solution: that's an article that will help decide.
https://machinelearningmastery.com/analy...-learning/
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