\function{reverse}
\synopsis{Reverse the elements of a 1-d array}
\usage{Array_Type reverse (Array_Type A)}
\description
 The \sfun{reverse} function reverses the elements of a 1-d array and
 returns the result.
\seealso{shift}
\done

\function{shift}
\synopsis{Shift the elements of a 1-d array}
\usage{Array_Type shift (Array_Type A, Int_Type n)}
\description
 The \sfun{shift} function shifts the elements of an array by a specified amount
 and returns the result.  If \exmp{n} is positive, the ith element of the array
 will be shifted to the position \exmp{i-n} of the array.  Elements for 
 which \exmp{i-n} is less than 0 will be moved to the end of the array.
\example
#v+
   A = [1,2,3,4,5,6,7,8,9];
   B = shift (A, 3);          % ==> B = [4,5,6,7,8,9,1,2,3];
   C = shift (A, -1);         % ==> C = [9,1,2,3,4,5,6,7,8];
#v-
\notes
 It many ways \exmp{rotate} would be a better name for this function.
\seealso{reverse, transpose}
\done