Share JSXGraph: example "Complex roots of polynomial with real coefficients"

<div id="board-0-wrapper" class="jxgbox-wrapper " style="width: 100%; ">
   <div id="board-0" class="jxgbox" style="aspect-ratio: 1 / 1; width: 100%;" data-ar="1 / 1"></div>
</div>

<script type = "text/javascript"> 
    /*
    This example is licensed under a 
    Creative Commons Attribution ShareAlike 4.0 International License.
    https://creativecommons.org/licenses/by-sa/4.0/
    
    Please note that you have to mention 
    The Center of Mobile Learning with Digital Technology
    in the credits.
    */
    
    const BOARDID = 'board-0';

    const board = JXG.JSXGraph.initBoard(BOARDID, {
        boundingbox: [-9, 9, 9, -9],
        axis: true
    });
    
    // Coefficients [a_0, ..., a_n] of a polynomial, 
    // starting with a_0, a_1, ...
    var coefficients = [-1, 3, -9, 1, 0, 0, -8, 9, -9, 1];
    var roots = JXG.Math.Numerics.polzeros(coefficients);
    
    for (let i = 0; i < roots.length; i++) {
        board.create('point', [roots[i].real, roots[i].imaginary], {
            withLabel: false,
            fixed: true
        });
    }
    
    board.create('text', [-8, 3, JXG.Math.Numerics.generatePolynomialTerm(coefficients, coefficients.length - 1, 'x', 0)]);
 </script> 

<jsxgraph width="100%" aspect-ratio="1 / 1" title="Complex roots of polynomial with real coefficients" description="This construction was copied from JSXGraph examples database: http://jsxgraph.org/share/" useGlobalJS="false">
   /*
   This example is licensed under a 
   Creative Commons Attribution ShareAlike 4.0 International License.
   https://creativecommons.org/licenses/by-sa/4.0/
   
   Please note that you have to mention 
   The Center of Mobile Learning with Digital Technology
   in the credits.
   */
   
   const board = JXG.JSXGraph.initBoard(BOARDID, {
       boundingbox: [-9, 9, 9, -9],
       axis: true
   });
   
   // Coefficients [a_0, ..., a_n] of a polynomial, 
   // starting with a_0, a_1, ...
   var coefficients = [-1, 3, -9, 1, 0, 0, -8, 9, -9, 1];
   var roots = JXG.Math.Numerics.polzeros(coefficients);
   
   for (let i = 0; i < roots.length; i++) {
       board.create('point', [roots[i].real, roots[i].imaginary], {
           withLabel: false,
           fixed: true
       });
   }
   
   board.create('text', [-8, 3, JXG.Math.Numerics.generatePolynomialTerm(coefficients, coefficients.length - 1, 'x', 0)]);
</jsxgraph>