2015-05-27 14:24 GMT+02:00 Sean P. DeNigris <sean@clipperadams.com>:

Nicolas Cellier wrote
> Also because it's good to know that 1/10 ~= 0.1

Why? It's an implementation detail. #= unlike #== is IIUC supposed to be
logical to the domain, and math doesn't make any distinction about how bits
are stored ;)

Nope, it's more than a detail.

It's what every engineer should know about floating point.

If you think float == real number then you'll be screwed by many unexpected behavior, like why 0.1+0.1+0.1 ~= 0.3 etc...

So you have to somehow unlearn what you were teached in math, because it's simply not true with float.

And the faster you get this feedback, the better.

��

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Cheers,
Sean
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