Post Reply 
Can this be solved with any HP CAS?
09-30-2017, 01:04 PM (This post was last modified: 09-30-2017 02:25 PM by Gilles59.)
Post: #27
RE: Can this be solved with any HP CAS?
(09-28-2017 07:43 PM)Csaba Tizedes Wrote:  
(09-27-2017 08:56 PM)Gilles59 Wrote:  I suppose that the CAS simplify too much ;D

PS.: No any CAS which can solve this problem correctly... This is too simple to handle it correctly. Of course the triple integrals in negative dimensions on a hyperboloid surface can do without problem, but I'm an engineer and I want RELIABLE solutions.

Hi CSaba

The HP Prime returns the correct answer {}
The old hp50 cas simplify the équation in 3x=15. but we have a brain. A cas is just a tool. This limitation of DOMAIN for the 50g is explain in the doc.

You are engineer. Perhaps for your problem x=5+/- epsilon could be an interesting approximate solution. For an engineer the question is : what means x=5 in the system? Infinite length? Infinite force? Undeground altitude? Negative mass? Why x=5 is impossible in a physical point of view? For an engineer mathematic is just a tool in my point of view.
Find all posts by this user
Quote this message in a reply
Post Reply 

Messages In This Thread
Can this be solved with any HP CAS? - HP67 - 09-27-2017, 03:55 PM
RE: Can this be solved with any HP CAS? - Gilles59 - 09-30-2017 01:04 PM

User(s) browsing this thread: 1 Guest(s)