Re^3: Small Perl 6 discoveries II, Rats

If the Rat class isn't any more accurate than a Num, but it's much slower, then what purpose does it serve?

Comment on Re^3: Small Perl 6 discoveries II, Rats

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Re^4: Small Perl 6 discoveries II, Rats by bduggan (Pilgrim) on Oct 19, 2017 at 16:02 UTC
Well -- I'd say it is more accurate (though not more precise) -- it can accurately represent rational numbers, so you can do rational arithmetic without rounding errors. e.g. `> .3.Num - .2.Num - .1.Num == 0 False > .3 - .2 - .1 == 0 True` [download]	[reply] [d/l]
Re^5: Small Perl 6 discoveries II, Rats by Anonymous Monk on Oct 19, 2017 at 16:44 UTC
The reason this digression started is because it can't accurately represent rational numbers. Except for trivial examples, I suppose.	[reply]