Untitled

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  <title></title>
  </head>
  <body>

 <script language="JavaScript">
  function vypocti()
  {
  av = document.getElementById("a").value*1;
  bv = document.getElementById("b").value*1;
  cv = document.getElementById("c").value*1;

  D = (bv*bv)-(4*av*cv)

  /*if D < 1
  {} */

  kor_1 = ((((bv)*(-1)) + Math.sqrt(D)) / (2*av));
  kor_2 = ((((bv)*(-1)) - Math.sqrt(D)) / (2*av));


  document.getElementById("koren_1").value = kor_1;
  document.getElementById("koren_2").value = kor_2;
  document.getElementById("Diskri").value = D;
  }
  </script>

Zadejte hodnoty: <br>

A: <input type="text" id="a"><br>
B: <input type="text" id="b"><br>
C: <input type="text" id="c"><br>
<input type="button" value="Vypočítej" onclick="vypocti()">

<hr>

Výsledek: <br>
Diskriminant: <input type="text" id ="Diskri"><br>
Kořen 1: <input type="text" id ="koren_1"><br>
Kořen 2: <input type="text" id ="koren_2">

  </body>
</html>