/a/ - Animu & Mango

>>944957

It makes perfect sense in you know even a tiny bit of math. I believe you should be more focused on your school than anime.

>>944958

Please explain how the diameter of an orthodrome can be smaller than the diameter of any a non great circle of the same sphere.

>>944960

Who the fuck told you this is Euclidean space?

>>944962

>non-Euclidean space

And who the fuck told you this is non-Euclidean space?

The page clearly shows 2 diagrams with flat planes and no curves. The depiction of the flatland also shows no significant curviture.

The artist and this faggot >>944958 just fucked up.

Isekai and dungeons alike are all so tiresome.

>>944957

I think the illustration is that way for the sake of clarity. I'd reckon for aesthetic reasons too, but I'm no Starbucks employee.

>>944966

If the picture is impossible in the Euclidean space, it's sane to assume it's drown in non-Euclidean space. Before calling that something is drown bad you should thing how it can be explained. And if you don't see a was it can be explained, you should study more.

>>944970

Okay Prof. Butterfingers, thank you for the lecture.

>>944970

>it's sane to assume it's drown in non-Euclidean space.

No, the diagrams and art are flat and not curved.

You (and the artist, although he might have just done it out of convenience as >>944968 said) made a dumb mistake and now you are embarrassing yourself because you can't handle being wrong on an anonymous imageboard.

>>944977

It doesn't have to be curved to be non-Euclidean. There are 5 Euclidion postulates:

> 1.To draw a straight line from any point to any point.

> 2.To produce (extend) a finite straight line continuously in a straight line.

> 3.To describe a circle with any centre and distance (radius).

> 4.All right angles are equal to one another.

> 5.If a straight line falling on two straight lines make the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which the angles are less than two right angles.

You assumed for some reason, then only of the 5th postulated isn't true, than the space would be non-Euclidean. However I was talking about the 3d postulate. In this space radius isn't constant and the longest chord doesn't goes through the centre, but it's still the circle.

>>944957

It's a top-down perspective. What is so hard to understand about it?

>>944957

The only way it makes sense is if the circle around the outside is just a panel frame rather than a part of the diagram itself.

>>945694

Not a big problem, there is web-novel: https://ncode.syosetu.com/n2671do/

>>944988

You can't just pick one of the first 4 postulate and change it, that's not how it works.

Even in Hyperbolic, Elliptic, Spherical and Differential geometry (and probably all other kinds that don't involve theoretical quantum mechanics that change the first postulate) the first 4 postulates are still the same, the differences start from the 5th.

What you are saying is basically

>What if circles aren't real, then the circle would be possible.

>>945796

Oh, I can. I can even define Pi as 0.1 and the circumference would be less then radius. I can say that you can't draw a line between 2 points, and it would become discrete space. It may have no use for people, but I sure can define it however I want. Math is magic, anon.

>>945806

If you want to pull bullshit like that, just say that they use a different set of numerals where "1" takes the value of 5 and "5" takes the value of 1. Or say they're working in reciprocal space and "km" is actually the symbol for inverse kilometers.

Or we could just accept that the diagram is, at best, poorly conceived.

If the manga was set in non-Euclidian space where pi is 0.1 then the art would look really fucking weird.

>>945809

Not necessary. It can just create a world where a straight line wouldn't be a fastest way to get between points. Going around would be faster, just like strafing is faster in some game than walking straight.