[KJL]

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Assume you are getting 6:1 pot odds at flop to call. You are drawing to nut flush. So it is wise to call a bet or bet oneself at least. When it is wise to raise and why? If you raise, you get only 3:1 pot odds. How can it be rational? Any mathematical formulas to clarify the situation?

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Say for instance that you are only getting 5-1 from the pot. If you call it is correct because you have a little more than a 4-1 chance to make you flush draw by the turn. However if your oppenent bets again on the turn, because the bets double, you will only be getting 4-1 for your bet, when you need to be getting about 4.1-1, so it is a slightly incorrect call. Now if you were to raise on the flop getting 5-1 and your oppenent calls, you would be getting only 3-1 from the pot. However, if you know your oppenent will now check to you, instead of betting the turn, you are getting 3-1 on your 2-1 odds to make the flush between the flop and river.