Weird Issue with Solve Function - Printable Version +- HP Forums ( https://www.hpmuseum.org/forum)+-- Forum: HP Calculators (and very old HP Computers) ( /forum-3.html)+--- Forum: HP Prime ( /forum-5.html)+--- Thread: Weird Issue with Solve Function ( /thread-14724.html) |

Weird Issue with Solve Function - Solver - 03-26-2020 07:36 PM
So this is how the problem should look and the answer as well: https://www.wolframalpha.com/input/?i=solve%28%5Bx*y%5E3%3D10%5E11%2C%28x%5E2%29%2Fy%3D10%5E8%5D%2C%5Bx%2Cy%5D%29 When I type this into the Prime though, I get nothing. Just the dreaded [[]]. Trying to graph the two equations gives the yellow exclamation mark before going into the graphing screen with nothing on it. RE: Weird Issue with Solve Function - roadrunner - 03-27-2020 12:50 AM
Change your plot setting to this: [attachment=8259] and you should get this: [attachment=8260] -road RE: Weird Issue with Solve Function - roadrunner - 03-27-2020 01:12 AM
And if you modify your second equation slightly you get: [attachment=8261] I'm not sure why your original form doesn't work. -road RE: Weird Issue with Solve Function - Tim Wessman - 03-27-2020 01:22 AM
Have a value stored for x or y? RE: Weird Issue with Solve Function - roadrunner - 03-27-2020 01:38 AM
Nope: [attachment=8262] RE: Weird Issue with Solve Function - Solver - 03-27-2020 04:53 AM
Thanks roadrunner! Hopefully this is not a bug. (03-27-2020 01:22 AM)Tim Wessman Wrote: Have a value stored for x or y? Yeah, I don't have a value stored either. RE: Weird Issue with Solve Function - parisse - 03-27-2020 07:42 AM
Indeed, bug confirmed and fixed. RE: Weird Issue with Solve Function - Jan 11 - 03-27-2020 11:13 AM
This is more difficult. We're dealing with big numbers. Others tried to solve this case before me. I've also tried to solve this system of equations. I did it by looking for an approximation (lower boundary, upper boundary). See it in the screenshots. HP PRIME is a very powerful calculator. It solves almost every equation, inequality, equation system. But if there are problems, the outstanding Parisse will fix it quickly. [attachment=8265] RE: Weird Issue with Solve Function - CyberAngel - 03-27-2020 05:36 PM
(03-27-2020 11:13 AM)Jan 11 Wrote: This is more difficult. We're dealing with big numbers. If only we could have the full power of χCas in the HP Prime. Separating the (external) libraries that contain ©opyright or other issues(*) so that a note powerful HP Prime would be available. Also the bug fixes would be more universal thus requiring less version maintaining efford. – – VPN (*) Software library licence problem requiring everything using it to become public? |