Cubic and Quartic Formulae

02212015, 04:18 AM
Post: #1




Cubic and Quartic Formulae
Hello everyone.
I was just curious if an App exists to find exact values for a cubic and quartic polynomial rather than decimal approximations. I know Maple can provide exact answers, but I've yet to see a calculator do this. Thanks. 

02212015, 01:36 PM
Post: #2




RE: Cubic and Quartic Formulae
There was a discussion a while ago...
The solution to the quartic equation on the HP50g (long) http://www.hpmuseum.org/cgisys/cgiwrap/...ead=158163 

02212015, 02:24 PM
Post: #3




RE: Cubic and Quartic Formulae
I mean the solutions are right here:
https://suhaimiramly.files.wordpress.com...uartic.jpg https://31.media.tumblr.com/tumblr_mcmir...rvnfhg.png 

02212015, 04:57 PM
Post: #4




RE: Cubic and Quartic Formulae
(02212015 04:18 AM)LCieParagon Wrote: I was just curious if an App exists to find exact values for a cubic and quartic polynomial rather than decimal approximations. I know Maple can provide exact answers, but I've yet to see a calculator do this. ?!? – cubic functions are solved by calculators at least since the 67/97 era of the Seventies. Including real as well as complex solutions. There are several ways to solve such equations, the formulas are well know for centuries. Please take a look at Wikipedia on roots of cubic functions. OK – solving quartic functions is a different story. ;) Dieter 

02212015, 05:58 PM
Post: #5




RE: Cubic and Quartic Formulae
(02212015 04:57 PM)Dieter Wrote:(02212015 04:18 AM)LCieParagon Wrote: I was just curious if an App exists to find exact values for a cubic and quartic polynomial rather than decimal approximations. I know Maple can provide exact answers, but I've yet to see a calculator do this. The calculator only provides numerical approximations and not exact answers. I would like a calculator to provide an exact solution. I can calculate it myself using the formulae. 

02212015, 09:24 PM
Post: #6




RE: Cubic and Quartic Formulae
(02212015 04:57 PM)Dieter Wrote: /wiki/Quartic_function#Solving_a_quartic_equation]solving quartic functions[/url] is a different story. ;) Actually not that different either  see JM Baillard's program at" http://hp41programs.yolasite.com/polynomials.php also available in the SandMatrix Module. 

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