> If what you're after is randomness, then there are ways to even-out biases
> in the bit generators. One common one is to XOR more bits together to
> generate a single bit. It can be shown (but don't ask me to do it :) that
as
> more bits are XORed the probability of the output bit being a 1 or a 0
> approaches equality. Surprisingly it doesn't take that many XORs to do it
> either. Start with 3 or 4 bits.

I posted a rather long description of this a month or three ago, which
included the math describing why it works.

Bob Ammerman
RAm Systems

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