Can this be solved with any HP CAS?

09302017, 01:04 PM
(This post was last modified: 09302017 02:25 PM by Gilles59.)
Post: #27




RE: Can this be solved with any HP CAS?
(09282017 07:43 PM)Csaba Tizedes Wrote:(09272017 08:56 PM)Gilles59 Wrote: I suppose that the CAS simplify too much ;D 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. 

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