To design a web application for a standard calculator with minimum five operations.
Clone the github repository and create Django admin interface.
Change settings.py file to allow request from all hosts.
Use CSS for creating attractive colors.
Write JavaScript program for implementing five different operations.
Validate the HTML and CSS code.
Publish the website in the given URL.
<!DOCTYPE html>
<html>
<head>
<title>Calculator</title>
<style type="text/css">
table{
border: 1px solid black;
margin-left: auto;
margin-right: auto;
}
input[type="text"]{
border: 1px solid black;
padding: 20px 30px;
font-size: 24px;
font-weight: bold;
border-radius: 2px;
}
input[type="button"]{
width: 100%;
padding: 20px 40px;
background-color:gray;
border-radius: 2px;
}
h1 {
text-align: center;
color: red;
font-size: 20px;
}
</style>
</head>
<body>
<form name="form1" onload="result.value=''">
<h1>Simple Calculator</h1>
<table id="calc">
<tr>
<td colspan="4">
<input type="text" id="result">
</td>
</tr>
<tr>
<td><input type="button" value="1" onclick="result.value+='1'"/></td>
<td><input type="button" value="2" onclick="result.value+='2'"/></td>
<td><input type="button" value="3" onclick="result.value+='3'"/></td>
<td><input type="button" value="+" onclick="result.value+='+'"/></td>
</tr>
<tr>
<td><input type="button" value="4" onclick="result.value+='4'"/></td>
<td><input type="button" value="5" onclick="result.value+='5'"/></td>
<td><input type="button" value="6" onclick="result.value+='6'"/></td>
<td><input type="button" value="-" onclick="result.value+='-'"/></td>
</tr>
<tr>
<td><input type="button" value="7" onclick="result.value+='7'"/></td>
<td><input type="button" value="8" onclick="result.value+='8'"/></td>
<td><input type="button" value="9" onclick="result.value+='9'"/></td>
<td><input type="button" value="*" onclick="result.value+='*'"/></td>
</tr>
<tr>
<td><input type="button" value="/" onclick="result.value+='/'"/></td>
<td><input type="button" value="0" onclick="result.value+='0'"/></td>
<td><input type="button" value="." onclick="result.value+='.'"/></td>
<td><input type="button" value="=" onclick="result.value=eval(result.value)"/></td>
</tr>
<tr>
<td colspan="4">
<input type="button" value="clearall" id="clear" onclick="result.value=''">
</td>
</tr>
</table>
</form>
</body>
</html>
The program for designing a standard calculator using HTML and CSS is executed successfully.