Re: Chapter marks not where specified.

On Thu, 29 Mar 2012 13:16:41 +0100, Tom Brock wrote:

> What is the rationale for adding 0.5?

Probably a crude way of doing rounding by a programmer who didn’t know
any better.

Bear in mind I inherited chief custody of this code, I didn’t write most
of it.

> I really don't think this can be the root of the problem I'm seeing,
> since any possible error introduced could be only 11.11 us at most,
> but it's the sort of thing I often come across in my day job, and I
> can be a bit obsessive about it.

Understood. I have read several of the writings of Professor William
“IEEE-754” Kahan, right back to his foreword to the “Standard Apple
Numerics Manual” from 1988
<http://groups.google.com/group/comp.lang.python/msg/5aaf5dd86cb00651?hl=en>.

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