HP Prime - problem with Solve App
05-25-2016, 02:10 PM
Post: #10
 roadrunner Senior Member Posts: 438 Joined: Jun 2015
RE: HP Prime - problem with Solve App
In CAS, the same approach, but with csolve, returns:

{[18/(3*4^(1/3)*((1/2)*√(3)*i+(1/2))),-6/(3*4^(1/3)*((1/2)*√(3)*i+(1/2))),3*4^(1/3)*((1/2)*√(3)*i+(1/2))],[-18/(3*4^(1/3)),6/(3*4^(1/3)),-3*4^(1/3)],[18/(3*4^(1/3)*((-1/2)*√(3)*i+(1/2))),-6/(3*4^(1/3)*((-1/2)*√(3)*i+(1/2))),3*4^(1/3)*((-1/2)*√(3)*i+(1/2))]}

Which is the exact real solution from fsolve along with the two exact complex solutions. I haven't checked, but I assume the two complex solutions are correct; making this approach much more powerful than the original solve app, which only returns real solutions.

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 Messages In This Thread HP Prime - problem with Solve App - MarkF - 05-19-2016, 04:57 PM RE: HP Prime - problem with Solve App - DrD - 05-19-2016, 05:40 PM RE: HP Prime - problem with Solve App - MarkF - 05-19-2016, 06:13 PM RE: HP Prime - problem with Solve App - roadrunner - 05-20-2016, 12:45 PM RE: HP Prime - problem with Solve App - MarkF - 05-20-2016, 06:56 PM RE: HP Prime - problem with Solve App - Tim Wessman - 05-23-2016, 02:06 PM RE: HP Prime - problem with Solve App - retoa - 05-24-2016, 01:23 PM RE: HP Prime - problem with Solve App - roadrunner - 05-25-2016, 11:26 AM RE: HP Prime - problem with Solve App - DrD - 05-25-2016, 12:59 PM RE: HP Prime - problem with Solve App - roadrunner - 05-25-2016 02:10 PM

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