# Poker

Poker is a family of gambling card games involving betting and individual play, whereby the winner is determined by the ranks and combinations of players' cards, some of which remain hidden until the end of the game.
Poker games vary in the number of cards dealt, the number of shared or "community" cards, and the number of cards that remain hidden. The betting procedures vary among different poker games in such ways as betting limits and splitting the pot between a high hand and a low hand.

In standard poker, each player bets according to the rank he believes his hand is worth as compared to the other players. The action then proceeds clockwise as each player in turn must either match, or "call", the maximum previous bet or fold, losing the amount bet so far and all further interest in the hand. A player who matches a bet may also "raise", or increase the bet. The betting round ends when all players have either matched the last bet or folded.

vCalc's Poker folder contains equations for all forms of the Poker card games.

## Poker Equations

• Probability of Flush losing (fraction)
• Probability of Flush losing (percentage)
• Probability of Four of a Kind losing (fraction)
• Probability of Four of a Kind losing (percentage)
• Probability of Full House losing (fraction)
• Probability of Full House losing (percentage)
• Probability of High Card losing (fraction)
• Probability of High Card losing (percentage)
• Probability of One Pair losing (fraction)
• Probability of One Pair losing (percentage)
• Probability of Royal Flush losing (fraction)
• Probability of Royal Flush losing (percentage)
• Probability of Straight Flush losing (fraction)
• Probability of Straight Flush losing (percentage)
• Probability of Straight losing (fraction)
• Probability of Straight losing (percentage)
• Probability of Three of a kind losing (fraction)
• Probability of Three of a kind losing (percentage)
• Probability of Two Pair losing (fraction)
• Probability of Two Pair losing (percentage)