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Subject: Re: Definition of branching factor?

Author: Larry Griffiths

Date: 10:43:16 01/31/01

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On January 30, 2001 at 17:46:28, Severi Salminen wrote:

>Hi!
>
>What is the definition of BF and how is it calculated (this has probably been
>discussed N times, but...)? Now I'm calculating like this:
>              ______________________
>BF=(DEPTH-1)|(Nodes/root_move_count)
>
>So it means (DEPTH-1)th root.
>
>Example (from Vincent's position): DEPTH=9 plies, Nodes=2'000'000 and we have 38
>legal moves in root.
>     ____________
>BF=8|2'000'000/38 = 3.9
>
>Could this be close to the truth?
>
>Severi

This looks like an nth root of the 2000000/38.  How would I code this in C++ to
get this 3.9 value?  My math skill since high school has gone down tremendously.

Larry.



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