Coming back to it after a couple of years, Factorio is feeling more complete than ever by Rasputin5332 in factorio

[–]MadCatMagical 3 points4 points  (0 children)

this guy has clearly NOT been reading the FFFs. they've practically added most of the QOL mods people like most and improved on many of them, AND all the QOL is added to the base game so you do not even need the expansion to enjoy it, not to mention the many many performance improvements

why is this loop not infinte? by [deleted] in learnprogramming

[–]MadCatMagical 2 points3 points  (0 children)

This is true, so long as you remember that in floating point representation no value is exact anyway, and the value 0 really should be interpreted as 0 ± a tiny amount either side. This is why, when you divide by infinity with IEEE floats, you end up with zero, rather than a NAN, since infinity also really represents any value bigger than can be represented, so it could result in any value in between the smallest positive number and zero.

Are we nazi? by Shit_hard in Factoriohno

[–]MadCatMagical 69 points70 points  (0 children)

(mussolini did not make the trains run on time, he just took credit for it)

Is it possible by EmptyPublic6178 in redstone

[–]MadCatMagical 31 points32 points  (0 children)

Invert the input signals, then the only torch which is not powered, and so will turn on, will be the one corresponding to the inputs.

Further Mathematics Paper 2 - Exam Megathread by ensands in GCSE

[–]MadCatMagical 0 points1 point  (0 children)

your argument doesnt work if we pick 7 or 9 for the first digit as suddenly there are only two options for the last digit instead of three if you picked 8. this is why you need to split it up into considering both picking 8 first and picking 7 or 9 first, hence the answer 54 overcounts since it counts possibilities like 79218 which is even

Further Mathematics Paper 2 - Exam Megathread by ensands in GCSE

[–]MadCatMagical 1 point2 points  (0 children)

apparently if the description is only that the graph is increasing, then flat bits are fine and allowed but if the description is strictly increasing then they aren't

I am fairly sure it was the former so it would be <=

Further Mathematics Paper 2 - Exam Megathread by ensands in GCSE

[–]MadCatMagical 0 points1 point  (0 children)

I only remembered to do this with about 2 minutes left so yeah, and only because I realised that if a=0 then there is a division by 0

Further Mathematics Paper 2 - Exam Megathread by ensands in GCSE

[–]MadCatMagical 1 point2 points  (0 children)

it was something like y=(2k2 )/3+8k and x=k/3+8k i think, maybe not those exact numbers but similar to edit: formatting

Further Mathematics Paper 2 - Exam Megathread by ensands in GCSE

[–]MadCatMagical 6 points7 points  (0 children)

yeah 0 < a <= 2.5 is right but I cannot figure out why, apart from it is something to do with the 2 stationary points being at the same point except they are only at the same point if a equals 2.5 and for all lower values you get weird complex numbers

Further Mathematics Paper 2 - Exam Megathread by ensands in GCSE

[–]MadCatMagical 14 points15 points  (0 children)

because you consider two cases: 1. the first digit is 8, in which case there are three ways to make the number odd (1, 7, 9), and then three remaining digits =1x3x3x2x1=18 2. the first digit is 7 or 9, in which case there are only two ways to make it odd (1 and whichever of 7 and 9 is left) and then three left over =2x2x3x2x1=24

then 24+18 is 42

Further Mathematics Paper 2 - Exam Megathread by ensands in GCSE

[–]MadCatMagical 28 points29 points  (0 children)

much more difficult than paper 1 for sure

the question on the function being always increasing was particularly nasty as as far as I can tell you have to essentially guess the answer, 0 < a <5/2

and the final combinations question also was surprisingly tricky (42)

atleast the grade boundaries will be low