EXP() Function in MySQL

EXP() function in MySQL is used to returns E raised to the power of a specified number. Here E(2.718281...) is the base of the natural logarithm. Syntax :

EXP(X)

Parameter : This method accepts one parameter as mentioned above in the syntax and described below : X – A specified number which will be used as a power of E. Returns : It returns E raised to the power of the given number X. Example-1 : Calculating e raised to the power of 1 using EXP() function.

SELECT EXP(1) AS Exp_Val ;

Output :

EXP_VAL
2.718281828459045

Example-2 : Calculating e raised to the power of -3 using EXP() function.

SELECT EXP(-3) AS Exp_Val ;

Output :

EXP_VAL
0.049787068367863944

Example-3 : The EXP function can also be used in a column data. To demonstrate create a table named Product.

CREATE TABLE Product(
Product_id INT AUTO_INCREMENT,  
Product_name VARCHAR(100) NOT NULL,
Buying_price DECIMAL(13, 2) NOT NULL,
Selling_price DECIMAL(13, 2) NOT NULL,
Service_grade Decimal(6, 2) NOT NULL,
PRIMARY KEY(Product_id)
);

Now inserting some data to the Product table –

INSERT INTO  
Product(Product_name, Buying_price, Selling_price, Service_grade)
VALUES
('ASUS ROG', 80000.00, 100000.00, 4.00 ),
('DELL INSPIRON', 75000.00, 90000.00, 3.00 ),
('ACER PREDATOR', 100000.00, 134000.00, 2.50 ),
('LENOVO LEGION', 90000.00, 118000.00, 1.50 ),
('HP OMEN', 70000.00, 85000.00, 5.00) ;

Showing all data in Product Table –

Select * from Product;

PRODUCT_ID	PRODUCT_NAME	BUYING_PRICE	SELLING_PRICE	SERVICE_GRADE
1	ASUS ROG	80000.00	100000.00	4.00
2	DELL INSPIRON	75000.00	90000.00	3.00
3	ACER PREDATOR	100000.00	134000.00	2.50
4	LENOVO LEGION	90000.00	118000.00	1.50
5	HP OMEN	70000.00	85000.00	5.00

Now, we are going to find exp values for all the records present in the Service_grade column.

Select Product_id, Product_name, Buying_price,  
Selling_price, Service_grade,
EXP(Service_grade) AS EXPGRADE  
FROM Product;

Output :

PRODUCT_ID	PRODUCT_NAME	BUYING_PRICE	SELLING_PRICE	SERVICE_GRADE	EXPGRADE
1	ASUS ROG	80000.00	100000.00	4.00	54.598150033144236
2	DELL INSPIRON	75000.00	90000.00	3.00	20.085536923187668
3	ACER PREDATOR	100000.00	134000.00	2.50	12.182493960703473
4	LENOVO LEGION	90000.00	118000.00	1.50	4.4816890703380645
5	HP OMEN	70000.00	85000.00	5.00	148.4131591025766