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 lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
body
{
margin: 0;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
min-height: 100vh;
background-color: #44652e;
color: #fff;
font-family: 'Arial', sans-serif;
}
#calculator
{
background-color:rgb(36, 133, 185);
border-radius: 10px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
padding: 20px;
text-align: center;
margin-top: 20px;
}
input
{
width: 100%;
margin-bottom: 10px;
padding: 10px;
font-size: 18px;
background-color:#f6fbfb;
color: #000; /* Contrasting color for white background */
border: none;
border-radius: 5px;
}
button
{
width: 100px;
height: 50px;
margin: 5px;
font-size: 18px;
cursor: pointer;
border: none;
border-radius: 5px;
background-color: #2bdcd9;
color: #fff;
}
button.operator
{
background-color: #e74c3c;
}
button.equal
{
background-color: #2ecc71;
}
button.clear
{
background-color: #95a5a6;
color: #333;
}
button.extra
{
background-color: #f39c12;
}
</style>
</head>
<body>
<div><b>SCIENTIFIC CALCULATOR - </b>
<B>R.JAYASREE(212223040074)</B></div>
<div id="calculator">
<input type="text" id="display" disabled>
<br>
<button onclick="appendToDisplay('7')">7</button>
<button onclick="appendToDisplay('8')">8</button>
<button onclick="appendToDisplay('9')">9</button>
<button class="operator" onclick="appendToDisplay('/')">/</button>
<br>
<button onclick="appendToDisplay('4')">4</button>
<button onclick="appendToDisplay('5')">5</button>
<button onclick="appendToDisplay('6')">6</button>
<button class="operator" onclick="appendToDisplay('*')">*</button>
<br>
<button onclick="appendToDisplay('1')">1</button>
<button onclick="appendToDisplay('2')">2</button>
<button onclick="appendToDisplay('3')">3</button>
<button class="operator" onclick="appendToDisplay('-')">-</button>
<br>
<button onclick="appendToDisplay('0')">0</button>
<button class="clear" onclick="clearDisplay()">C</button>
<button class="equal" onclick="calculateResult()">=</button>
<button class="operator extra" onclick="appendToDisplay('%')">%</button>
<br>
<button class="extra" onclick="appendToDisplay('Math.sqrt(')">√</button>
<button class="extra" onclick="appendToDisplay('Math.pow(')">x^y</button>
<button class="extra" onclick="appendToDisplay('Math.sin(')">sin</button>
<button class="extra" onclick="appendToDisplay('Math.cos(')">cos</button>
<br>
<button class="extra" onclick="appendToDisplay('Math.tan(')">tan</button>
<button class="extra" onclick="appendToDisplay('Math.log10(')">log</button>
<button class="extra" onclick="appendToDisplay('Math.log(')">ln</button>
<button class="extra" onclick="appendToDisplay('(')">(</button>
<br>
<button class="extra" onclick="appendToDisplay(')')">)</button>
<button class="operator" onclick="appendToDisplay('+')">+</button>
<button class="extra" onclick="appendToDisplay('Math.PI')">π</button>
<button class="extra" onclick="appendToDisplay('Math.E')">e</button>
</div>
<script>
function appendToDisplay(value) {
document.getElementById('display').value += value;
}
function clearDisplay() {
document.getElementById('display').value = '';
}
function calculateResult() {
try {
// Replace '^' with 'Math.pow'
const expression = document.getElementById('display').value.replace(/\^/g, 'Math.pow');
document.getElementById('display').value = eval(expression);
} catch (error) {
document.getElementById('display').value = 'Error';
}
}
</script>
</body>
</html>
The program for designing a standard calculator using HTML and CSS is executed successfully.
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