Function Calculator
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Function Calculator
- Code:
<html>
<head>
<title>Function Calculator</title>
<script type="text/javascript">
function show_cal(){
function num(){
a=Number(document.form1.num1.value);
b=Number(document.form1.num2.value);
c=a+b;
document.form1.result1.value=c;
a=Number(document.form1.num1.value);
b=Number(document.form1.num2.value);
c=a-b;
document.form1.result2.value=c;
a=Number(document.form1.num1.value);
b=Number(document.form1.num2.value);
c=a*b;
document.form1.result3.value=c;
a=Number(document.form1.num1.value);
b=Number(document.form1.num2.value);
c=a/b;
document.form1.result4.value=c;
}
function addition(){
a=Number(document.form1.num3.value);
b=Number(document.form1.num4.value);
c=a+b;
document.form1.result1.value=c;
}
function subtraction(){
a=Number(document.form1.num5.value);
b=Number(document.form1.num6.value);
c=a-b;
document.form1.result2.value=c;
}
function multiply(){
a=Number(document.form1.num7.value);
b=Number(document.form1.num8.value);
c=a*b;
document.form1.result3.value=c;
}
function division(){
a=Number(document.form1.num9.value);
b=Number(document.form1.num10.value);
c=a/b;
document.form1.result4.value=c;
}
/*function formValidator(){
var number = document.getElementById('number');
if(isNumeric(number, "Only Numbers pls")){
return true;
}return false;
}
function notEmpty(elem, helperMsg){ //gia keno
if(elem.value.length == 0){
alert(helperMsg);
elem.focus(); // set the focus to this input
return false;
}
return true;
}
function show_clear(){
document.form1.display.value=null;
num1= null;
num2 = null;
lastaction= null;
action = null;
} */
}
</script>
</head>
<body>
<table width="400" align="center" bgcolor="#C0C0C0">
<form name="form1" action="">
<tr align="center">
<td width="600" height="112" align="center" border="1">
<h1 align="center"> Calculator </h1>
Number 1: <input name="num1" type="text" size=10/>
Number 2: <input name="num2" type="text" size=10/>
</td>
</tr>
<tr align="center">
<td width="500">
<input name="num3" type="text" size=10/> +
<input name="num4" type="text" size=10/> =
<input name="result1" type="text" size=10/>
</td>
</tr>
<br/>
<tr align="center">
<td width="500">
<input name="num5" type="text" size=10/> -
<input name="num6" type="text" size=10/> =
<input name="result2" type="text" size=10/>
</td>
</tr>
<br/>
<tr align="center">
<td width="500">
<input name="num7" type="text" size=10/> *
<input name="num8" type="text" size=10/> =
<input name="result3" type="text" size=10/>
</td>
</tr>
<br/>
<tr align="center">
<td width="500">
<input name="num9" type="text" size=10/> /
<input name="num10" type="text"size=10/> =
<input name="result4" type="text" size=10/>
</td>
</tr>
<br/>
<td height="13"></tr>
<tr align="center" width="100">
<td>
<input name="result" type="button" onClick="show_cal()" value="Result" />
<input type="button" onClick="show_clear()" value="Clear"/>
</td>
</tr>
</form>
</table>
</body>
</html>
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