Solve Quartic with Casio FX-115MS
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08-24-2019, 12:47 PM
(This post was last modified: 08-25-2019 11:14 AM by Albert Chan.)
Post: #4
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RE: Solve Quartic with Casio FX-115MS
(11-29-2018 05:28 PM)Albert Chan Wrote: Find D such that RHS is perfect square, i.e. discriminant = B^2 - 4(2D - A)(D^2 - C) = 0 For many calculators, [SOLVE] might not be available. We can setup Newtons iterations to get D 2 = Ans - (B² - 4(2 Ans - A)(Ans² - C)) ÷ (8(C + Ans(A - 3 Ans = → 1.99137931 = → 1.991306465 = → 1.99130646 Note: for Casio FX-115MS, it is not necessary to put bracket before 8 However, without the bracket, formula is ambiguous: https://plus.maths.org/content/pemdas-paradox |
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Messages In This Thread |
Solve Quartic with Casio FX-115MS - Albert Chan - 11-29-2018, 05:28 PM
RE: Solve Quartic with Casio FX-115MS - Albert Chan - 11-29-2018, 10:31 PM
RE: Solve Quartic with Casio FX-115MS - Albert Chan - 02-04-2019, 01:39 PM
RE: Solve Quartic with Casio FX-115MS - Albert Chan - 08-24-2019 12:47 PM
RE: Solve Quartic with Casio FX-115MS - SlideRule - 03-14-2020, 01:28 AM
RE: Solve Quartic with Casio FX-115MS - Albert Chan - 08-30-2019, 02:02 PM
RE: Solve Quartic with Casio FX-115MS - Albert Chan - 09-02-2019, 02:35 PM
RE: Solve Quartic with Casio FX-115MS - Albert Chan - 02-01-2020, 12:27 PM
RE: Solve Quartic with Casio FX-115MS - Albert Chan - 03-13-2020, 06:30 PM
RE: Solve Quartic with Casio FX-115MS - Albert Chan - 11-20-2024, 04:34 PM
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