Combinations bidirectional

07142020, 02:55 PM
Post: #1




Combinations bidirectional
Helo
COMB(n,r) gives n!/(r!(nr)!) But if I put 2*n!/(r!(nr)!) how can I get 2*COMB(n,r) Is it possible? Thanks very much 

07172020, 12:33 AM
Post: #2




RE: Combinations bidirectional  
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