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| Soft Ballistik, roulette computer |  | Log på Casinoportalen.dk |  |
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| | | | | | | Kelly
  
Posts: 797
28-09-2003 10:33
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|  Soft Ballistik, roulette computer | Edward Thorp og Del Shannon var de første der reelt slog rouletten. De brugte en efter nutidens målestok temmelig simpel computer med tilhørende i dag næsten ubrugeligt tilbehør. Thorp skrev også den legendariske "Beat the dealer" der dengang var med til at ændre black jack reglerne.
< img src="http://www.newtonroulette.com/images/physics-picture-copy.jpg"> Computeren fungerer ud fra beregninger om kuglens hastighed samt hjulets hastighed samt hjulets position i et bestemt øjeblik. Softwaren beregner så det mest sandsynlige nedfalds sted samt hjulets position i dette øjeblik. Dette punkt bliver så tillagt et "scatterdiagram" hvor C (se skema) er det højeste/mest sandsynlige/hyppigste punkt efter at kuglen har ramt den første diamant. < img src="http://www.btinternet.com/%7eroulette/roulette/graph.JPG">
Idag findes der flere sofistikerede modeller hvor nummeret der skal satses på bliver leveret direkte i øret på en fra computeren. Man er så nødt til at bære en iøvrigt lille bitte så at sige usynlig øresnegl. Normalt spiller man i 2 holds team, hvor den ene administrerer computeren, en Psion lommecomputer,
mens den anden gør indsatserne. I tilfælde af at der opstår mistanke om at der bruges computer, som er ulovligt, er det ikke ham der gør indsatserne der bærer den.
Prisen for computer og tilbehør ligger på omkring 16.000 kr.
Der findes flere udgaver, dem der er mest kendte er Mark Antony Howe og Pierre Basieux og selvfølgelig Thorpe som i øvrigt i 70erne ikke havde det store held med computeren i praksis, på grund af computeren og tilbehørets beskaffenhed.
Der findes også 2 grupper i tyskland der har udviklet deres egne versioner.
Jeg har korresponderet en del med Mark Antony Howe. Uden at overdrive kan jeg sige at han er en mystisk fætter. Jeg er ikke den store matematiker men hvis der er nogen der er, er hans software teori beskrevet her på engelsk:
The formula (polynomial for the data) can be obtained by taking three lots of timings, with associated times of distance that corespond to these timings or the distances!
First of all, the data you need from your timings must be spread over a large spread of the data so that you are interpolating rather than extrapolating!
So first of all you need to write down some timings, one after the other, plus an associated time of distance with each data set. So basically an example would be the following>
Times of each rev 10 11 13 15 18 21 25 28 35 42
Timing
Time of distance 207 197 184 169 151 130 105 77 42 0
with these timings
Distance associated 9 8 7 6 5 4 3 2 1 0
with these Timings
So an example would be the number 13 for a rev timing. we know now that it will take 184 units of time to drop and it will have taken 7 full revolutions!
But obviously we need to know what will happen if we get a timing of say 14 units or 23 units. This is where the polynomial comes in!
So we need three sets of data to predict the timing, and three sets of data to produce the distance!
Lets call these X(1), X(2), X(3) Y(1),Y(2),Y(3)
And we need to take a spread over a large data set, so using the above data we will take three timings , one at the begining, one in the middle, and one at the end! Our timings of the revolution will always be in either the time of distance calc or the Distance calc.
So first we will do the Time of distance, so lets take the data from above>
X(1)=10 X(2)=18 X(3)=35 (Times of revolutions)
Y(1)=207 Y(2)=151 Y(3)=42 (times of coresponding times of distance)
Place this data in the following formula>
Formula:
a=(X(2)*X(2))-(X(1)*X(1))
b=(X(3)*X(3))-(X(2)*X(2))
c=(X(2)-X(1))
d=(X(3)-X(2))
e=(Y(2)-Y(1))
f=(Y(3)-Y(2))
g=((c*f)-(d*e))/((b*c)-(a*d))
h=(Y(1)-(g*(X(1)*X(1))))
i=(Y(2)-(g*(X(2)*X(2))))
j=((i-h)/X(2)-X(1)))
k=Y(1)-(X(1)*(X(1)*g)-(X(1)*j)
This works out a 2nd order polynomial!
Which is the module 'Formula' in the program on the psion. You can use a calculator, or get the Psion to do it!
From this you want the numbers that corespond to g,j and k. These are the three functions to go into your equation.
Now enter another number in the following formula>
we will call your number Z
Time of Distance for any given number = ((Z*Z)*g)+(Z*j)+k
So if you enter 21 for the value of Z, you should get 130 for Time of distance!
Enter an intermediate value such as 23 and the formula will give you the distance travelled and the number of revolutions travelled, this will then correspond to observed data later!
To get the distance using the same formula, leave the value of X(1), X(2),X(3) the same, just change the values of Y(1) etc to the associated numbers of revoutions at the top, then do the formula again! This time the formula will give you the distance for any given time of revolution!
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| | | | | | | Kelly
Posts: 797
28-09-2003 10:36
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