         EOQ INVENTORY MODEL 

IN INVENTORY THEORY A REORDER COST IS A FIXED COST ASSESSED
EACH TIME AN ORDER FOR AN ITEM IS PLACED, NO MATTER WHAT
THE ORDER QUANTITY IS.
A HOLDING COST IS A COST DUE TO HOLDING INVENTORY,E.G.INTEREST.
A STOCKOUT COST IS DUE TO RUNNING OUT OF AN ITEM.
IN THIS PROGRAM WE ASSUME THAT THERE WILL BE NO STOCKOUTS.
IN ADDITION THE ITEMS ARE USED UNIFORMLY THROUGHOUT THE YEAR
WE CAN TAKE DELIVERY OF A REORDER WHENEVER WE WANT.
DEMAND IS IN NUMBER OF ITEMS USED PER YEAR.
REORDER COST IS IN DOLLARS PER REORDER.
HOLDING COST IS IN DOLLARS PER ITEM PER YEAR.

TO BEGIN PRESS ENTER? 
DEMAND             ? 3456
REORDER COST       ? 56.78
HOLDING COST       ? 12.34

TO MINIMIZE TOTAL COSTS OF INVENTORY :
         REORDER  178  ITEMS AT A TIME

THIS MEANS ORDER APPROXIMATELY 19  TIMES PER YEAR
OR ABOUT EVERY  19  DAYS.
