? PHP Math: intdiv(), sqrt(), pow()

? Quick Overview

The intdiv(), sqrt(), and pow() functions are part of PHP's mathematical toolkit. These functions help perform integer division, calculate square roots, and raise numbers to powers.

? Key Concepts

• intdiv() – Integer division without remainder.
• sqrt() – Square root calculation.
• pow() – Exponentiation.

? Syntax / Theory

• intdiv(dividend, divisor)
• sqrt(number)
• pow(base, exponent)

? Code Example: intdiv()

// Perform integer division and discard remainder
<?php
$dividend = 10;
$divisor = 3;
echo intdiv($dividend, $divisor);
?>

? Code Example: sqrt()

// Calculate the square root of a number
<?php
$number = 16;
echo sqrt($number);
?>

? Code Example: pow()

// Raise a number to the power of another
<?php
$base = 2;
$exponent = 3;
echo pow($base, $exponent);
?>

? Live Output / Explanation

• intdiv(10, 3) → 3
• sqrt(16) → 4
• pow(2, 3) → 8

? Interactive Concept Demo

// Simulate PHP math logic using JavaScript
const a = 10;
const b = 3;
console.log(Math.floor(a / b));
console.log(Math.sqrt(16));
console.log(Math.pow(2, 3));

? Use Cases

• Pagination and page calculations using intdiv()
• Geometry, physics, and statistics using sqrt()
• Scientific formulas and growth calculations using pow()