title: Row major order storage to multidimensional array
body: <p>Given a 2x3 array, 
   [1,2,3]
   [4,5,6]
  it is easy to store this linearly using row major order storage -> [1,2,3,4,5,6]</p>
  
  <p>A particular row, column in the multidimensional array can be converted into a index in this linear array using the formula:
  index = row*NumCol + column</p>
  
  <p>Is there a way to compute the row,column given some index in the linear array.
  So given index=1, value 2 in the linear array, is there a way to determine that row=0 column=1?</p>