Arithmetic Operators

The (pi) operator displays the value of pi: 3.1415926535898

The $math operator allows you to perform various math functions to find the total result iof what comes after it

the total result of 5.7 + 3.14 * 153.01 / 9.99 - 86.10 is: -32.306766766767

The (sqrt()) operator finds the square root of a number: 8

The (number_format()) function formats a number to two decimal places: -32.31
The (round()) function rounds a number to three decimal places: -32.307

The result of raising 5 to the power of 3 is: 125