Need to explain the program code in 2 “for” loops.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Fraction Calculator</title>
</head>
<body>
<h1>Fraction Series Calculator</h1>
<form method="POST">
<label for="count">Enter the number of fractions:</label>
<input type="number" id="count" name="count" min="1" required>
<input type="submit" value="Calculate">
</form>
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$count = intval($_POST['count']);
$result = 0;
for ($i = 1; $i <= $count; $i++) {
$numerator = 1;
$denominator = 1;
for ($j = 1; $j <= $i; $j++) {
$numerator *= (2 * $j - 1);
$denominator *= (2 * $j);
}
$result += $numerator / $denominator;
}
echo "<h2>Result: " . $result . "</h2>";
}
?>
</body>
</html>
This program calculates fractions and gives the answer. But I don’t understand how and what algorithm it uses to do this.
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