Calculator Tool 
When you use the Calculator Tool from a game, it automatically loads the current cards on the table each time you open the window. The exception to this is if you change any of the cards or number of opponents to research other scenarios. In this case, the Calculator Tool will leave your settings as you left them. To reset the tool back to the current hand, click on any card and choose the "Load All Cards".
Hint: You can drag the calculator window outside the DD Poker window so you can keep it open as you play.
Picking
Cards

Clear All Cards  Click Clear All Cards start over and reset all cards to a wild card . 
Clear Opponents Cards  Click Clear Opponents Cards to only clear your opponents cards to a wild card . 
Clear Community Cards  Click Clear Community Cards to only clear the community cards to a wild card . 
Load All Cards  Click Load All Cards in Practice mode to load your hole cards, all opponents hands and the community cards. 
Load My & Community Cards  Click Load My & Community Cards in Practice mode to load your hole cards and the community cards. 
Opponents' Cards Face Up  In Practice mode, by default, the calculator tool loads all
opponents hands as wild cards. If you wish, you can toggle Opponents'
Cards Face Up so that the opponents' cards are displayed face up.
The calculator will have far fewer combinations to calculate since it does
not have to figure every possible hole cards your opponents can have. Be
careful using this because you will learn your opponents hands! (Only available in Practice) 
Showdown Calculator Tab

What do the number of combinations mean? Cards that are unknown or not visible are called "wild cards". These could be community cards or your opponent's cards. When there is a wild card, the calculator will calculate all the possible outcomes and display a percentage for each player's chance to win, lose, or tie. Note: The Showdown Calculator takes every possible hand combination into account when calculating. It does not figure that your opponent would have folded a poor hand like a 2 7 off suit, or that they would have more likely stayed in with a pair of kings. See the note on "uniform" distribution in the Hand Strength section below. If there are no wild cards, there is only 1 combination, meaning everyone's hand is showing and there is only one possible result. If there are multiple wild cards, then DD Poker uses a branch of mathematics called combinatorics to determine the number of combinations. We won't get into the details of the equation used to determine this, but rest assured DD Poker does the hard math for you. As you add more wild cards in multiple hands, the number of possible
combinations grows exponentially. As an extreme example, calculating 10
hands of wild cards and 5 wild cards on the board would have
60,281,548,319,469,636,261,129,060,633,600,000
combinations and take longer than the age of the universe to calculate!
In cases like that, use the simulate option unless you have a really really
really large amount of free time on your hands. 
Flop Tab

Turn Tab

River Tab

Hand Ladder Tab

Hand Strength Tab

The Hand Strength item in the DD Dash board shows the same value on this tab,
using the row for the number of opponents still left in the hand. The hand strength
calculations assume your opponents hands are equally likely to have a poor hand
as well as a good hand and the percentage is calculated based on all possible
hands remaining. This is known as a "uniform" distribution. In a future
version of DD Poker we will allow you to measure your hand strength against
what your opponents are "likely" to hold.
Hand Group Simulations Tab

With three, four or five board cards defined, this tab shows how your hand, together with the current board cards, does against random hands and the hands in all defined hand groups. It then calculates and tally's wins, loses, and ties based on all possible remaining board cards. (practice only)