#math things

I sent my friend these memes:

And he responded with “hmm… I can lift one hundred sixty-six pounds. How many swords is that?”

(Oddly specific number btw 🤔)

Anyway— maths ensue on my end:

The average medieval short sword is two pounds.

The average medieval greatsword is six pounds.

So… my friend can carry about…

eighty-three short swords

or

twenty-seven and a half greatswords.

BUT…

I wasn’t including the weight of sword belts, because who wants to carry all of those naked blades with their bare hands.

The average sword belt (no frogs or large fastenings, and average leather thickness) is a little less than one pound. I’m just gonna round up to one because I’m lazy.

Assuming we’re being inefficient with our sword belt storage optimization, and saying one belt per sword, that’s about…

fifty-five and a third short swords

or

twenty-three and two thirds greatswords.

Now with scabbards — because let’s be honest, this is the modern age and SOMEONE’s going to enforce safety protocols.

Short sword scabbards are about one pound.

Greatsword scabbards are about two and a quarter pounds.

SO. If all the swords have scabbards, and each sword has a sword belt, how many swords can my friend carry?

Forty-one and a half short swords

or

about eighteen greatswords.

…

I invented custom math...

I go “two thirds is four thirds is a cup&a third” if I’m making two boxes

Note: He's an electrical engineer and I'm doing first-year university math.

Me: You know what that is?

Dad: Matrix-vector multiplication! :)

Me: Yea! And that?

Dad: Determinants?

Me: Yes! The Laplace method.

Dad: ...right.

My sister: Dad, what about LGS?

Him: I don't know it in German...

Me: Linear Equation System?

Him: Oh, LES! Yeah! :D

Me: And this?

Him:

Me: That's Gauß-elimination.

Him:

Me:

My sister:

Me: Dad?

Dad: You took me back like 20 years. Damn.

My sister: So you remember it?

Dad: Get this shit away from me.

If you add up all the digits in a long number and that number is divisible by 3 then that number is divisible by 3 (example: 123 so 1+2+3=6 6 is divisible by 3 and when you plug 123/3 into the calculator/do it in your head because it's not that hard, you get 41)

If a number ends in an even number and is divisible by 3 then that number is divisible by 6 (example: 234 so 2+3+4=9 9 is divisible by 3 and it ends in 2 which is an even number and when I plug 234/6 into the calculator I get 39)

wife was relaying this conversation and how it progressed to "rather than a basic cardioid, I want to figure out how to graph an anatomically correct heart to send to you" (I'm still very approving of this method of flirting tbh) and no lie my first thought was "heck someone at Wolfram has probably done that."

10 minutes of trying to find the right search terms and sure enough someone's done it.