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## ##
## USAGE: ##
## ##
## $elo_calculator = new elo_calculator; ##
## ##
## Please make sure you send the scores & results in ##
## the following order: ##
## ##
## 1st player's score ##
## 2nd player's score ##
## 1st player's result ##
## 2nd player's result ##
## ##
## A better example is given here: ##
## ##
## $results=$elo_calculator->rating($S1,$S2,$R1,$R2); ##
## ##
## * S1 = 1st player's score ##
## * S2 = 2nd player's score ##
## * R1 = 1st player's result ##
## * R2 = 2nd player's result ##
## ##
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