I model and doodle stuff

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Joined 1 year ago
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Cake day: September 1st, 2023

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  • After some thinking I came up with this.
    Conjecture:

    =+b²
    N  = c²+d²
    
    a = 2*c*d
    b =-c²
    
    integers a,b,c,d>0
    
    For any integer N that can be expressed as both N²=+b² and N=c²+, the relationship a=2*c*d holds.  
    

    Is it enough proof just to show that the above equations are true when substituting them to N² and N equations?
    If a = 2*c*d then one leg of the Pythagorean triple definitely contains c and d factors and ‘2’. This might be related to Pythagorean triple parametrization.

    I fixed the flawed ChatGPT counterexample finder script and now it gives this list of all numbers including composites which don’t follow these rules, such as 58. Here’s sub-sequence of A004431 numbers that don’t follow the rules:

    Numbers which neither Pythagorean side is divisible by 4
    Composites: [10, 26, 34, 50, 58, 74, 82, 90, 106, 122, 130, 146, 170, 178...]
    This is identical to Sums of two distinct odd squares A339977 which makes sense as if c,d>1 and odd, they must be 3 or bigger hence their factors are missing the extra ‘2’, unlike primes where one of c or d is always even.
    Even composites appear to follow a=2*c*d relation. The prime pythagorean side divisibility by 4 appears to be just a side effect.






  • I genuinely thought symlinking these files was standard because how many people I have seen suggesting it. I have had this issue so many times when I needed to that one program updated but there’s no newer libraries in AUR. Surprisingly, I haven’t had issues and I’ve been doing this past 5 years on my personal system. So I guess I consider compiling from source next time.




  • Yes, my parents used to have chickens. It’s unlikely that the incubation period would be 9 months and being oviparous has It’s own challenges. If humans did evolve that route I’d imagine that we’d have overcome most of the issues. Dinosaurs being one example, it’s possible humans would be cold blooded and have learned the joy of regurgitation. It comes down to speculation whether human like intelligence could have evolved with these limitations.