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Subject: Re: Integer or Floating Point for Scoring?

Author: Frank Schneider

Date: 00:04:44 02/09/99

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On February 09, 1999 at 02:43:52, Larry Griffiths wrote:

>I have been using Floating point (double) for my evaluation (scoring)
>function.  I set some variables to 0.0 when starting the Alpha-Beta search.
>I add values to these variables when a move is made and then subtract them
>back out when restoreing the piece.  I have found that the result is not
>always returned back to 0.0.  I get something like 3.56234567343534-18.
>
>Should I be using integers for scoring instead?
>
>Thanks in advance!   :->
>
>Larry
I think most programs use integers or longs for the scoring. I see two
advantages:
1. faster code
2. (probably) more stable search and more cutoffs

Frank



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