<center>
    <h1>
Polynomial interpolation
    </h1>
    <p>
Quadratic polynomial
    </p>
    <p class="formula">
P(x) = ax<sup>2</sup> + bx + c
    </p>
    <p>
Using Horner's method
    </p>
    <p class="formula">
P(x) = (ax+ b)x + c
    </p>

    <p>
Quadratic polynomial from 3 points
    </p>
    <canvas id="polynomial" width=640 height=512></canvas>
    <table>
    <tr><td rowspan="2">
<b>P(x) = ax<sup>2</sup> + bx + c</b>
    </td><td id="polynomial_system">

    </td>
    </tr><tr><td id="polynomia