Root

Z←√R returns the square root of each of the elements in R.

R is a numeric array.

Z is a floating point array whose values are the square root of the elements of R.

Z←L√R    or    Z←L√[X] R returns the Lth root of each of the elements in R.

L and R are numeric arrays.

Z is a floating point array whose values are the Lth root of the elements of R.

For example,

      √⍳4
1 1.414213562 1.732050808 2
      (3√⍳4)*3
1 2 3 4

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