# PHP Math Functions

PHP has a set of math functions that allows you to perform mathematical tasks on numbers.

---

## 1. Pi
The `pi()` function returns the value of PI.

```php
echo pi(); // returns 3.1415926535898
```

## 2. Min and Max
The `min()` and `max()` functions can be used to find the lowest or highest value in a list of arguments.

```php
echo min(0, 150, 30, 20, -8, -200);  // returns -200
echo max(0, 150, 30, 20, -8, -200);  // returns 150
```

## 3. Absolute Value
The `abs()` function returns the absolute (positive) value of a number.

```php
echo abs(-6.7);  // returns 6.7
```

## 4. Square Root
The `sqrt()` function returns the square root of a number.

```php
echo sqrt(64);  // returns 8
```

## 5. Rounding
The `round()` function rounds a floating-point number to its nearest integer.

```php
echo round(0.60);  // returns 1
echo round(0.49);  // returns 0
```

## 6. Random Numbers
The `rand()` function generates a random number.

```php
echo rand();
echo rand(10, 100); // Random number between 10 and 100 (inclusive)
```

[[programming/php/php]]