MySQL POW() function

POW() function

MySQL POW() returns the value of a number raised to the power of another number. The synonym of POW() is POWER().

This function is useful in -

• POW() allows for the modeling of phenomena like compound interest, population growth, and radioactive decay.
• In engineering, POW() is used in various fields, including electrical engineering, mechanical engineering, and chemical engineering.
• In finance, POW() is used to calculate compound interest and growth rates.
• POW() is used in signal processing to calculate the power of a signal, which is essential in areas like telecommunications, audio processing, and image processing.
• POW() is an essential component in many scientific formulas, especially those that involve exponential relationships, such as the decay of radioactive isotopes or the charging/discharging of capacitors.
• POW() is used in probability and statistics for various calculations, including likelihood ratios, likelihood functions, and power functions in hypothesis testing.
• The POW() function is valuable in educational settings, helping students and learners understand and perform calculations involving exponential growth, decay, and related concepts.

Syntax:

POW(M,N);

Arguments:

Syntax Diagram:

MySQL Version: 8.0

Pictorial presentation of MySQL POW() function

Example of MySQL POW() function

Code:

SELECT POW(3, 2);

Explanation:

The above MySQL statement returns the value of 3², i.e. 9.

Output:

mysql> SELECT POW(3, 2);
+-----------+
| POW(3, 2) |
+-----------+
|         9 | 
+-----------+
1 row in set (0.04 sec)

Example: POW() function with negative value

Code:

SELECT POW(4,-2);

Explanation:

The above MySQL statement returns the value of 4^-2, i.e. 0.0625.

Output:

mysql> SELECT POW(4,-2);
+-----------+
| POW(4,-2) |
+-----------+
|    0.0625 | 
+-----------+
1 row in set (0.00 sec)

All Mathematical Functions

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