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  From Sarah: Hello! My question is:  
If I have 5 columns of numbers, and I want to create all possible combinations
 (or is it permutations?)  How can I do that? For example all numbers in each 
column may not appear in any other column. so:  
column 1: 1,2,3,4,5 
column 2: 6,7,8,9,10 
column 3: 11,12,13,14,15 
column 4: 16,17,18,19,20 
column 5: 21,22,23,24,25  
  
how may I determine all the possible ways I can get sets of 5 out if this? Thanks! Answered by Penny Nom. |