Re: Rounding with Div and Mod operators

William Rayer <william.rayer@virgin.net> wrote:
>What is interesting about this rule is there seem to be two ways of
>rounding that satisfy it when n or d are negative - either we round
>integers to the next lowest value or we round towards zero.


Some years ago, Knuth wrote a short screed arguing why round toward
minus infinity is better than round towards zero. It might even be in
Volume 2. You might also check the Modula-3 definition for arguments
about why the desginers of that lagnuages chose round towards minus
infinity.


If anybody can actually find the Knuth reference, I'd like to hear
about it --- I seem to wind up producing it once a year, adn I'd love
to give people a more precise pointer.


Norman
[I looked, if it's in Vol 2, it's well hidden. -John]

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