Thursday 25 April 2013
calculator
<html>
<head>
<title>Simple Javascript Calculator - Basic Arithmetic Operations</title>
<script language="javascript" type="text/javascript">
function multiply(){
a=Number(document.calculator.number1.value);
b=Number(document.calculator.number2.value);
c=a*b;
document.calculator.total.value=c;
}
</script>
<script language="javascript" type="text/javascript">
function addition(){
a=Number(document.calculator.number1.value);
b=Number(document.calculator.number2.value);
c=a+b;
document.calculator.total.value=c;
}
</script>
<script language="javascript" type="text/javascript">
function power(){
a=Number(document.calculator.number1.value);
b=Number(document.calculator.number2.value);
c=Math.pow(a, b);
document.calculator.total.value=c;
}
</script>
<script language="javascript"type="text/javascript">
function Sqrt()
{
a=Number(document.calculator.number1.value);
c=Math.sqrt(a);
document.calculator.total.value=c;
}
</script>
<script language="javascript" type="text/javascript">
function subtraction(){
a=Number(document.calculator.number1.value);
b=Number(document.calculator.number2.value);
c=a-b;
document.calculator.total.value=c;
}
</script>
<script language="javascript" type="text/javascript">
function division(){
a=Number(document.calculator.number1.value);
b=Number(document.calculator.number2.value);
c=a/b;
document.calculator.total.value=c;
}
</script>
<script language="javascript" type="text/javascript">
function modulus(){
a=Number(document.calculator.number1.value);
b=Number(document.calculator.number2.value);
c=a%b;
document.calculator.total.value=c;
}
</script>
</head>
<body>
<!-- Opening a HTML Form. -->
<form name="calculator">
<!-- Here user will enter 1st number. -->
Number 1: <input type="text" name="number1">
<!-- Here user will enter 2nd number. -->
Number 2: <input type="text" name="number2">
<!-- Here result will be displayed. -->
Get Result: <input type="text" name="total">
<!-- Here respective button when clicked, calls only respective artimetic function. -->
<input type="button" value="ADD" onclick="javascript:addition();">
<input type="button" value="SUB" onclick="javascript:subtraction();">
<input type="button" value="MUL" onclick="javascript:multiply();">
<input type="button" value="DIV" onclick="javascript:division();">
<input type="button" value="MOD" onclick="javascript:modulus();">
<input type="button" value="POW" onclick="javascript:power();">
<input type="button" value="Sqrt" onclick="javascript:Sqrt();">
</form>
</body>
</html>
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