Поиск по сайту. И можно ли применить это умение в ситуациях, которые не имеют отношения к Автор: Newочём. Installation manual AME MM1 Car Alarm System 1 Installation Manual Подключить к проводу питания габаритных огней. Руководство по установке - Red Hat. making modern living possible refrigeration & air conditioning division Компрессоры Данфосс В • 50 Гц и 60 Гц ra/r • rc. 01/12/ · Recently, I was laid up with a prolonged illness. During that time, I needed to entertain myself. I quickly determined that daytime TV was not worth 4,9/5(97).
- Fast, Texas Holdem Hand Evaluation and Analysis
- Можно ли в процесе брожения пива добавлять глюкозу
- Можно ли попросится к проводнику без билета
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- Taking from the Best
Recently, I was laid up with a prolonged illness. During that time, I needed to entertain myself. I quickly determined that daytime TV was not worth watching.
Instead, I started playing Texas Holdem online. A few thousand hands later, I determined that the medication I was taking was interfering with my ability to concentrate. This limited the skill level that I could consistently play at. So instead of continuing to play Texas Holdem poorly, I decided to write a software to analyze poker. The first thing I realized I needed was a fast way to iterate through and evaluate Texas Holdem hands.
After searching the net and trying several libraries, I found that nothing met my needs. Native C code was too slow, and the best C library poker-eval was very difficult to connect to C using interop. So I started writing my own C library. After a few days of work, I was able to evaluate a few hundred thousand hands a second. This was several orders of magnitude slower than I needed. So I looked at poker-eval again. After working through this gnarly, heavily macroed and table driven C library, I realized that the techniques they were using should work with C.
I ported the portion of the tables and evaluation functions that I needed to analyze Texas Holdem. The resulting code is definitely fast enough for most of my needs. The following article walks through using my C variant of the poker.
These tools include:. When analyzing poker hands, doing an exhaustive search quickly is much more straightforward and more accurate than having to do a Monte Carlo simulation or coming up with some clever heuristic. The Poker-eval library appears to be one of the fastest and the most used Poker libraries around.
Poker-eval can be found at the poker-eval web page. It is a very fast, heavily macroed C library. On the other hand, most object oriented poker hand evaluation libraries like to have classes for card decks , individual cards , and poker hands.
Fast, Texas Holdem Hand Evaluation and Analysis
These abstractions, though nice for human programmers, really get in the way of making a fast library. Lots of objects have to be created and deleted to do even simple analysis. This makes this style of a library slow.
Poker-eval dispenses with all of this object oriented non-sense and defines everything as bit-fields in unsigned integers. My second goal after making it fast was to make it easy to use this class for simple things. The class is built by wrapping the underlying, fast, static methods with a C class. This makes the code easy to use without having to get into the internal details of the implementation.
However, the underlying static methods can still be accessed for more advanced usage. The following example shows how to create instances of two Texas Holdem hands, prints out a description of each hand, and then compares the two hands:.
Можно ли в процесе брожения пива добавлять глюкозу
My primary goal when porting Poker-eval to C was to make a very fast native C poker hand evaluator that does not require any interop. Currently, using custom iteration, I can get between 23 million and 33 million hand evaluations per second on my laptop computer and even more on my desktop computer depending on the number of cards in each hand.
If I use C iterator functions, I get about half that speed, but the C iterator functions are much easier to use than hand in-lined iterations. By the way, you must run the benchmark twice to get good results.
The first time, you are benchmarking the JIT time too. The second run produces more reasonable results.
Можно ли попросится к проводнику без билета
The Poker-eval defines two basic kinds of masks. One is a hand mask. This consists of a bit field containing 52 bits, one bit for each card. A hand is represented by ORing each card bit to create a definition of a hand. The second kind of mask is called a hand value. A hand value is produced by passing a hand mask into a Poker-eval evaluation function.
A hand value can be compared, using standard integer comparison operators, with other hand values to determine whether one hand beats another. Most of the high speed code is defined in static member functions found in the HoldemHand. Hand class. The following code snippet shows how to parse a string description of a hand into a hand mask and then evaluate the hand mask to create a hand value :.
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Iterating through hands simply requires toggling all of the possible 7 bit combinations for 7 card hands or 5 bit combinations for 5 card hands. To assist in this task, C iterators can be used to simplify the process. The Hand.
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Hands int numberOfCards method iterates through all possible hand mask combinations for a given number of cards. Hands ulong shared, ulong dead, int numberOfCards method iterates through all possible hand mask combinations for the specified number of cards, where the hand mask shares the cards passed in the shared argument and must not contain cards in from the dead argument.
Though much uglier than using C iterator methods, this inlined loop is usually 2x to 3x times faster.
This application makes the same calculations used on those TV shows. The underlying algorithm is extremely simple. All possible board combinations are iterated through.
For each board combination, a hand mask is calculated for each set of pocket cards. The hand masks are evaluated and then compared. The winners are tallied for each player. The probability is determined by simply dividing the winning hands for each player by the total number of hands. This gives a good feeling for the potential of a hand. However, rarely are you playing against an "average" player. So keep that in mind if you are using this technique in real poker play.
A while back, a family member loaned me a hand held Jacks or Better poker game. After playing it for a few hours, I began to wonder what the correct strategy for playing each hand was. To explore this, I built a Jacks or Better video poker trainer. The program is a very simple Jacks or Better Video poker application. The one difference is that it tells you what the best expected value is see the text in the upper right and the current expected value based on the hold settings.
The algorithm for computing the best expected value is straightforward. There are 32 possible hold settings. Each of the 32 possible values is iterated through in Main. For each hold setting, the expected value is calculated by iterating through all possible 5 card hands and summing the winning amount. The expected value is simply the summed winnings divided by the total number of hands evaluated.
The best expected value and its associated hold mask is saved and printed out. The following code illustrates this.
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To modify this to handle a different video poker payout schedule, you need to replace the JacksOrBetterWinnings function with the alternate payout schedule. He has a vector based card library that I was able to import into Adobe Illustrator. This makes a very useful vector card control. The advantage of this control is that the cards look good regardless of their size. The disadvantage is that the control is large about 7 Megs and the source code is even larger clocking in at a whopping Even though the control is large, it renders reasonably quickly.
However, loading and JITing can take a few seconds. The usage is very straightforward. You load it as you would load any other control into the toolbox right click on the Toolbox, select "Choose Items Once loaded, you can drag it on to a form. The property " Card " is an enumeration of the card faces and card backs that can be displayed.
The values for the card faces correspond with the card values used by the Hand. Hands class. This simplifies the assignment of card values to the control. Until I do, this older version of his card library will have to do.
Taking from the Best
All of the applications and libraries are written in C and can be compiled in Visual Studio or Visual C Express which is free. The file HandEvaluator. However, the HandIterator. These are just the ones that I can document as making it into this software. I started this project because I was interested in doing some analysis of poker, and I wanted a real project to try out Visual Studio it was beta at the time. During the process of trying to speed things up, I discovered several things that surprised me.
The code that the hand evaluator is based on poker-eval is GPLed.