htdocs/resolution.html at main · elleuchBilel/htdocs · GitHub

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<!DOCTYPE html>
<html>
<body>

<h2>Math</h2>


  <input type="number" id="a"  value=""><label >x2</label> +

  <input type="number" id="b"  value=""> x +
  <input type="number" id="c"  value=""> = 0 <br><br>


  <button type="button" onclick="resolve()">Resolve </button>

<p id="eq"></p>


<script>
function resolve() {
  var a = document.getElementById("a").value;
  var b = document.getElementById("b").value;
  var c = document.getElementById("c").value;

  var delta = b*b-4*a*c;
  if(delta>0)
  {
  	var x1 = (-b - Math.sqrt(delta)) / 2 * a ;
    var x2 = (-b + Math.sqrt(delta)) / 2 * a ;
    document.getElementById("eq").innerHTML = "2 solutions : " + x1 + " et " + x2 ;
  }

}


</script>
</body>
</html>