Reshape R←X⍴Y

Y may be any array. X must be a simple scalar or vector of non-negative integers. R is an array of shape X whose elements are taken from Y in row-major sequence and repeated cyclically if required. If Y is empty, R is composed of fill elements of Y (⊂∊⊃Y with ⎕ML←0). If X contains at least one zero, then R is empty. If X is an empty vector, then R is scalar.

Examples

      2 3⍴⍳8
1 2 3
4 5 6

      2 3⍴⍳4
1 2 3
4 1 2

      2 3⍴⍳0
0 0 0
0 0 0