Oracle EXP() function

Description

The Oracle EXP() function is used to get the value of the base of natural logarithm number e, raised to the power of a number specified as argument, where e = 2.71828183...
The function takes any numeric or nonnumeric data type (can be implicitly converted to a numeric data type) as an argument.
If the argument is BINARY_FLOAT, then the function returns BINARY_DOUBLE. Otherwise, the function returns the same numeric data type as the argument.

Syntax:

EXP(N);

Parameters:

Pictorial Presentation of EXP() function

Example:

The statement below will return the value of the natural logarithm base number e raised to the power of the number 1.

SELECT EXP(1) FROM dual;

Here is the result.

    EXP(1)
----------
2.71828183

Example: EXP() function with negative value

The statement below will return the value of the natural logarithm base number e raised to the power of the number -1.

SELECT EXP(-1) FROM dual;

Here is the result.

   EXP(-1)
----------
.367879441

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