Quadrafix

x2 + x + = 0

x1=

x2=

<HTML>

<HEAD>

<TITLE>JavaScript:Beispiel 5</TITLE>

<SCRIPT language="JavaScript">function loese() {

var p=document.formular.p.value;

var q=document.formular.q.value;

if (p*p/4<q) document. formular.x1.value="keine Loesung";

else {document.formular.x1.value=-p/2+Math.sqrt(p*p/4-q)

document.formular.x2.value=-p/2-Math.sqrt(p*p/4-q);

}

}</SCRIPT>

</HEAD>

<BODY>

<FORM name=formular>

<CENTER><FONT SIZE="+1"><B>x<SUP>2</SUP></B> +

</FONT>

<INPUT TYPE=text NAME=p VALUE="" SIZE=5><FONT SIZE="+1"><B>x

+</B></FONT>

<INPUT TYPE=text NAME=q VALUE="" SIZE=5>

<FONT SIZE="+1"><B>= 0</B>

</FONT>

<P><FONT SIZE="+1"><B><INPUT TYPE=button NAME=knopf VALUE="loesen" onclick="loese()"></B></FONT>

<P><FONT SIZE="+1"><B>x1=<INPUT TYPE=text NAME=x1 VALUE="" SIZE=30></B></FONT>

<P><FONT SIZE="+1"><B>x2=<INPUT TYPE=text NAME=x2 VALUE="" SIZE=30></B></FONT></CENTER>

</FORM>

</BODY>

</HTML>


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