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Y must be a numeric array. X must be a numeric array. R is numeric. The value of R is X raised to the power of Y.

If Y is zero, R is defined to be 1.

If X is zero, Y must be non-negative.

In general, if X is negative, the result R is likely to be complex.

#### Examples

2*2 ¯2
4 0.25
9 64*0.5
3 8
¯27*3 2 1.2 .5
¯19683 729 ¯42.22738244J¯30.67998919 0J5.196152423

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