Just say (0.1+0.2)\*10-3. That works everywhere no matter the amount of rounding... | Hacker News

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poizan42 on Nov 13, 2015 | parent | context | favorite | on: 0.30000000000000004

Just say (0.1+0.2)*10-3. That works everywhere no matter the amount of rounding.

static_noise on Nov 13, 2015 [–]

You've just invented fixed point numbers.

poizan42 on Nov 13, 2015 | [–]

I'm not sure I follow? The point here was to show that a language can't represent the decimal fractions exactly.

recursive on Nov 13, 2015 | | [–]

But they can. Many languages have decimal and rational types.

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