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Description of the illustration exp.gif


EXP returns e raised to the nth power, where e = 2.71828183 ... The function returns a value of the same type as the argument.

This function takes as an argument any numeric datatype or any nonnumeric datatype that can be implicitly converted to a numeric datatype. If the argument is BINARY_FLOAT, then the function returns BINARY_DOUBLE. Otherwise the function returns the same numeric datatype as the argument.

See Also:

Table 2-10, "Implicit Type Conversion Matrix" for more information on implicit conversion


The following example returns e to the 4th power:

SELECT EXP(4) "e to the 4th power" FROM DUAL;

e to the 4th power