PostgreSQL EXP() Function

The PostgreSQL EXP() function returns e raised to the power of specified number, i.e., e^x. Please note that e is the base of the natural system of logarithms, and its value is approximately 2.718282.

Syntax

EXP(x)

Parameters

Return Value

Returns e raised to the power of specified number.

Example 1:

The example below shows the usage of EXP() function.

SELECT EXP(0);
Result: 1

SELECT EXP(1);
Result: 2.718281828459045

SELECT EXP(-1);
Result: 0.36787944117144233

SELECT EXP(2);
Result: 7.38905609893065

SELECT EXP(-2);
Result: 0.1353352832366127

SELECT LN(EXP(1));
Result: 1

Example 2:

Consider a database table called Sample with the following records:

The statement given below can be used to calculate the exponent of records of column x.

SELECT *, EXP(x) AS EXP_Value FROM Sample;

This will produce the result as shown below: