| --- Log opened Fri Apr 16 00:00:39 2021 |
| 00:27 | <@celticminstrel> | I’m confused. There isn’t any other way to calculate modf, is there? |
| 00:28 | <@celticminstrel> | Oh wait, is what you want to have the sign assigned to i instead of f? |
| 00:28 | <@celticminstrel> | No wait, does that even make sense…? |
| 00:29 | <&McMartin> | He wants, if the remainder is negative, to instead subtract 1 from the integral result and add 1 to the remainder. |
| 00:29 | <&McMartin> | Which I *think* is the same thing as "round towards negative infinity" |
| 00:30 | <@celticminstrel> | modf isn’t remainder exactly… |
| 00:33 | <~Vornicus> | in the existing, both i and f get x's sign. I want f to be always nonnegative, which gives it consistent behavior across zero |
| 00:35 | <~Vornicus> | https://www.desmos.com/calculator/nw8wjjmtwz red is what I want; blue is what fmod does to f (shifted down so you can see it alone) |
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| 00:46 | <@celticminstrel> | I see. |
| 00:47 | <@celticminstrel> | I don’t think you could call that modf tho. |
| 00:49 | <@celticminstrel> | By definition, it’s supposed to split out the integer and fractional part, but x-floor(x) doesn’t do that for negative numbers. |
| 00:50 | <@celticminstrel> | You’ll get 0.9 from -0.1. |
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| 09:15 | <~Vorntastic> | celticminstrel: wat, that makes no sense |
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| --- Log closed Sat Apr 17 00:00:40 2021 |