MySQL provides different Mathematics functions to perform Math operations. In your syllabus we have to learn these three functions:

### 1. POWER ( ) or POW( )

The MySQL POWER function returns m raised to the nth power. (mn)
Ex:- 32 = 9

Syntax:
POWER( m, n ) OR POW( m, n)

Parameters or Arguments:
m: Numeric value. It is the base used in the calculation.
n: Numeric value. It is the exponent used in the calculation.

### 2. ROUND ( )

Returns a number rounded to a certain number of decimal places.
– Ex:- 12.265 rounded to 2 decimal points 12.27 .

Syntax:
ROUND( number, [ decimal_places ] )

Parameters or Arguments:
number: The number to round.
decimal_places: The number of decimal places to round. This value must be a positive or negative integer. If this parameter is omitted, the ROUND function will round the number to 0 decimal places.

### 3. MOD ( )

Returns the remainder of n divided by m.
– Ex:- 5 %  2  =  1

Syntax:
MOD( n, m )  OR  n MOD m  OR  n % m

Parameters or Arguments:
n: Number.
m: Devisor.