Quartic equation Calculator

Solves the quartic equation and draws the chart.

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    Quartic equation
    [1-10] /30Disp-Num
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    [1]  2021/10/03 08:08   Under 20 years old / High-school/ University/ Grad student / Useful /
    Purpose of use
    To find the roots of the zeroes and therefore use the multiplicit/y values between the zeroes to determine the points that make the equation positive.
    Comment/Request
    Add in the work
    [2]  2021/09/19 03:55   Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    Control Systems: Root locus diagram showed a breakaway point btn -3 and -4, way too lazy to use Regula Falsi, used the calculator to find that particular point. Very Helpful.
    [3]  2021/09/08 05:14   Under 20 years old / High-school/ University/ Grad student / A little /
    Purpose of use
    Want to know the code.
    [4]  2021/06/29 20:22   30 years old level / An engineer / Very /
    Purpose of use
    Solving the for maximum possible height of a rectangle (r1) given its width set diagonally inside another rectangle (r2) of known height and width such that the corners of r1 are touching the edges of r2. It ends up becoming a quartic equation and a little extra algebra to solve. I found the quartic equation on Wikipedia and verified my accuracy with the function on this site. Worked well.
    [5]  2021/05/30 04:24   Under 20 years old / High-school/ University/ Grad student / Useful /
    Purpose of use
    solving recurrence equations
    Comment/Request
    add steps!
    [6]  2021/05/29 06:57   20 years old level / High-school/ University/ Grad student / Useful /
    Purpose of use
    solving linear equation order 4
    [7]  2021/05/28 16:30   20 years old level / High-school/ University/ Grad student / A little /
    Purpose of use
    just for fun
    Comment/Request
    algebraic solution
    [8]  2021/05/04 14:46   Under 20 years old / High-school/ University/ Grad student / A little /
    Purpose of use
    To solve for the common ratio of a Geometric Progression when the sum and product of 5 consecutive terms a re given.
    [9]  2021/03/18 00:08   20 years old level / High-school/ University/ Grad student / Useful /
    Purpose of use
    Solving a 0 initial condition 2DOF system of equations in Laplace space.
    [10]  2021/02/16 03:45   - / High-school/ University/ Grad student / Very /
    Purpose of use
    solving for max and min on a surface

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