Re: [Haskell-beginners] High precision doubles

Point noted, it doesn't seem to be the case for the original question, as he is doing some square roots. On Fri, Jun 26, 2009 at 04:00, wrote:

G'day all.

Quoting Rafael Gustavo da Cunha Pereira Pinto

...

:

I am reading this and still don't understand what is the question. You

...

should never operate two floating point numbers expecting to result zero. Period.

WARNING: Advanced material follows.

A 32-bit integer fits losslessly in the mantissa of a Double. Any of the basic integer operations which work correctly on 32-bit integers must also work correctly when that integer is stored in a Double. You are allowed to assume this.

Cheers, Andrew Bromage

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