This isn’t really a problem, but it is a very odd thing, and I’m curious as to why it’s happening.
I’m not sure if I’ve made a mistake or found some kind of bug, but I’m trying to add a series of numbers with decimal places (I’m doing the sleep debt calculator task), and the result is sometimes incorrect if I include 7.7 as one of 7 numbers to be summed:
console.log(7.1+7.2+7.3+7.4+7.5+7.6+7.7); console.log(7.1+7.2+7.3+7.4+7.5+7.6+7.8); console.log(7.1+7.2+7.3+7.4+7.5+7.6+7.6); console.log(7.1+7.2+7.3+7.4+7.5+7.7); console.log(7.2+7.2+7.3+7.4+7.5+7.6+7.7); console.log(7.7+7.2+7.3+7.4+7.5+7.6+7.1); console.log(6.1+6.2+6.3+6.4+6.5+6.6); console.log(6.1+6.2+6.3+6.4+6.5+6.6+7.7);
51.800000000000004 51.9 51.7 44.2 51.900000000000006 51.800000000000004 38.1 45.800000000000004
I can’t for the life of me understand why I get the extra fraction. The position doesn’t matter, and it doesn’t seem to be down to the number of sums. It’s also specific to 7 sums including 7.7. 6 sums including 6.6 doesn’t do it.
It’s easily fixed by just using 7.8 instead of 7.7, so it’s not really a problem, I’m just very curious as to why this might be!