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Add SGPA/CGPA/Percentage Calculator #690

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Add SGPA/CGPA/Percentage Calculator #690

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44 changes: 44 additions & 0 deletions calculator.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>SGPA/CGPA Calculator</title>
<style>
body { font-family: Arial, sans-serif; padding: 20px; }
input { margin: 5px; }
button { margin: 10px 0; padding: 5px 10px; }
</style>
</head>
<body>
<h1>SGPA / CGPA / Percentage Calculator</h1>
<label>Enter marks (comma separated):</label><br>
<input type="text" id="marks" placeholder="e.g. 85,78,92"><br>
<button onclick="calculate()">Calculate</button>

<h2 id="result"></h2>

<script>
function calculate() {
let input = document.getElementById("marks").value;
let marks = input.split(',').map(Number);

if (marks.some(isNaN)) {
alert("Please enter valid numbers separated by commas.");
return;
}

let total = marks.reduce((a, b) => a + b, 0);
let percentage = total / marks.length;
let sgpa = percentage / 9.5;
let cgpa = sgpa; // simplified

document.getElementById("result").innerHTML = `
Percentage: ${percentage.toFixed(2)}% <br>
SGPA: ${sgpa.toFixed(2)} <br>
CGPA: ${cgpa.toFixed(2)}
`;
}
</script>
</body>
</html>