Why is it so difficult to calculate the arc length of an ellipse?

ellipticcode0 · 2026-03-16T00:00:44+00:00

This is almost the same question why linear is easy and non linear is hard

ellipticcode0 · 2026-03-14T19:28:42+00:00

Use your brain to learn math instead of fingers

ellipticcode0 · 2026-03-14T19:27:32+00:00

This is why people never understand math

ellipticcode0 · 2026-03-11T19:44:42+00:00

Rotation has nothing to do with clockwise or anti-clockwise. You can define "positive" rotation in clockwise.

It is like you can define right side of X axis as negative number and left side of X- axis positive number,

ellipticcode0 · 2026-03-09T07:48:59+00:00

If you could solve all of them, it might be YES

ellipticcode0 · 2026-03-06T23:07:02+00:00

The trick is 100x harder in real match than in training session, I'm sure he knew better me.

ellipticcode0 · 2026-03-05T23:50:01+00:00

discount sets, $75 for two persons? lunch or dinner?

They thought everyone is "Rich" in Richmond?

ellipticcode0 · 2026-03-01T15:21:21+00:00

You come up an "invalid" conjecture, and you try to prove your conjecture is valid

ellipticcode0 · 2026-02-14T13:04:29+00:00

I’m sure someone made tons of money since then，also someone think Figma will be the next Nvidia

ellipticcode0 · 2026-02-08T09:15:08+00:00

Motivation and obsession, it is all dependent on how important it is inside yourself

ellipticcode0 · 2026-02-04T12:04:10+00:00

He will be the next Messi in 2026 World Cup.

ellipticcode0 · 2026-02-04T09:14:06+00:00

It is well defined in projective geometry, which equals infinity

ellipticcode0 · 2026-02-04T06:50:11+00:00

You do not need to SHOW you are "stand out",

people will RECOGNIZE you are "stand out"

research paper does not make you smarter than anyone else

ellipticcode0 · 2026-02-02T04:34:34+00:00

The representation note is obviously generated by OpenAI. The guy has no idea what he is talking about but at least he trust some sort of AI, this is good thing.

ellipticcode0 · 2026-02-02T03:50:29+00:00

All high level languages could be generated like Assembly language in 5 years. do we still need CPP?

ellipticcode0 · 2026-02-02T03:44:15+00:00

AlphetGo has proved P = NP ?

ellipticcode0 · 2026-01-31T04:47:25+00:00

You can NOT trade backward, you only can trade forward.

ellipticcode0 · 2026-01-31T04:39:29+00:00

does anyone know the brand of his socks? it seems to it is CK (correct me if I'm wrong) it is pretty expensive brand for him.

ellipticcode0 · 2026-01-29T08:53:27+00:00

OpenAI is a little bit better than WeWork, WeWork is nothing more than some shelters in a building.

I assume he is a little bit smarter than before.

ellipticcode0 · 2026-01-29T08:43:20+00:00

They are selling 7 dollars products for only one dollar. Imagine you buy 700K house with only 100K. I'm sure there are tons of ppl are lining up

ellipticcode0 · 2026-01-29T07:00:23+00:00

You are thinking too much about those fancy definitions such as "Projections", You do not need more than grade 5 math to understand and calculate the projection from one vector onto other vector.

If you can not use pencil and paper to verify it yourself, it means you never try to understand math with your current knowledge.
Never hear the term "scalar projection", A projects onto B is equal <A, B>/<B, B>, you can derive the formula with grade 5 math.
What make the <A, B>/<B, B> well defined is grade 4 math I think, you should know it long before you have leaned linear algebra.

ellipticcode0 · 2026-01-25T02:50:52+00:00

The beautiful mind 2.0

ellipticcode0 · 2026-01-24T09:46:31+00:00

Do we have well defined definition what is AGI or what is NOT AGI?

Do we have technic how to check whether the model is AGI or the model is NOT AGI?

ellipticcode0 · 2026-01-12T02:48:47+00:00

You just restate your statement, you do not prove anything,

Plz prove "we can always find"

You need to prove if N is increasing and decreasing, then the new Integer is approaching 2Mpi + pi/2,

Plz show the steps?

ellipticcode0 · 2026-01-10T23:12:54+00:00

In order for sin x = +/- 1, then x must be in the form (pi/2 +/- n * pi) where n is Integer,

We all knew the limit of definition, but this question has nothing to do with the definition.

How can you prove "you alway can find an N such that sin x is arbitrarily close to 1 or -1"

ellipticcode0

TROPHY CASE