POWER

>>-POWER--(--expression-1--,--expression-2--)------------------><
The POWER function returns the result of raising the first
argument to the power of the second argument. 48
- expression-1
- The argument must be an expression that returns a value of any built-in
numeric, character-string, or graphic-string data type. A string argument
is cast to double-precision floating point before evaluating the function.
For more information on converting strings to double-precision floating point,
see DOUBLE_PRECISION or DOUBLE.
- expression-2
- The argument must be an expression that returns a value of any built-in
numeric data type. If the value of expression-1 is equal to zero,
then expression-2 must be greater than or equal to zero. If the value
of expression-1 is less than zero, then expression-2 must
be an integer value.
The result of the function is a double-precision floating-point number.
If both arguments are 0, the result is 1. If an argument can be null, the
result can be null; if an argument is null, the result is the null value.
Example
The result of the POWER
function is exactly the same as the result of exponentiation: expression-1 ** expression-2.
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