Solve Quartic with Casio FX115MS

03132020, 06:30 PM
Post: #8




RE: Solve Quartic with Casio FX115MS
(02012020 12:27 PM)Albert Chan Wrote: Unfortunately, the roots are in wrong order ! Tried above program just now, for Quartic x^4 + 2 x^3 + 3 x^2 + 4 x + 5 = 0 2 Enter 3 Enter 4 Enter 5 XEQ "G4G" Output "X=I,Z=I" ⇒ roots = Y ± X*I, T ± Z*I ≈ 1.2878 ± 0.6555*I, 0.2878 ± 1.5204*I Correct root should be 1.2878 ± 0.8579*I, 0.2878 ± 1.416*I G4G code indeed gives the wrong roots 

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Messages In This Thread 
Solve Quartic with Casio FX115MS  Albert Chan  11292018, 05:28 PM
RE: Solve Quartic with Casio FX115MS  Albert Chan  11292018, 10:31 PM
RE: Solve Quartic with Casio FX115MS  Albert Chan  02042019, 01:39 PM
RE: Solve Quartic with Casio FX115MS  Albert Chan  08242019, 12:47 PM
RE: Solve Quartic with Casio FX115MS  SlideRule  03142020, 01:28 AM
RE: Solve Quartic with Casio FX115MS  Albert Chan  08302019, 02:02 PM
RE: Solve Quartic with Casio FX115MS  Albert Chan  09022019, 02:35 PM
RE: Solve Quartic with Casio FX115MS  Albert Chan  02012020, 12:27 PM
RE: Solve Quartic with Casio FX115MS  Albert Chan  03132020 06:30 PM

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