pythagoras | A portable library of geometry classes for Java

I followed https://blog.golang.org/gob link. and wrote a sample, where the structure has all string data. Here is my sample:

I was given an assignment by our OOP Teacher. I am facing this problem though my code seems fine.

I had to take the coordinates of the vertices of the triangle from the user as and had to tell if it was a r right-angled triangle or not. So I simply used Pythagoras Theorem to Find it out, as we all know using the condition: h * h = b * b + p * p

But surprisingly this doesn't work for some specific right-angled triangles. Here is one such Triangle:

Vertex A: (x, y) = (1, 3)

Vertex B: (x, y) = (1, 1)

Vertex C: (x, y) = (5, 1)

It calculates perfectly, which I figured out by printing the calculation, but still doesn't work.

Then I tried by using sqrt() function from the cmath library this way: h = sqrt(b * b + p * p)

Logically it is the same, but it worked.

I want to understand, why the earlier method is not working?

Here is a simplified version of My Code:

The red circle is at a known angle of 130°, then I want to draw the navy line from the center to 130° using x and y of the red circle but it looks like I missed the calculation.

Currently, the angle of the Navy line is a reflection to the angle of the red line and if I add minus sign ➖ to *diffX * at line13, it'll work as expected but Why do I need to do that by myself, why can't the Calculations at line 10 and 13 figured out if x should be minus ➖ or plus.

I couldn't figure out where I was wrong..any help/suggestions are appreciated!

I recently came to know of the ICC profile format. As part of a broader project I am working on, I need some source code of a few .icc files and their corresponding parse trees (or alternatively a .icc file parser).

I have searched the internet looking for the same and now I am thoroughly confused about the following concepts:

(1) Does a .icc file have source code? It's hard to enough to find a sample .icc file on the net, and the ones I found on github cannot open without the "Microsoft Color Control Panel" and that doesn't mention the source code.

(2) Once I have the source code, is their an existing parser to generate a parse tree for such a file?

By 'source code' I mean: Following link displays an html file: https://en.wikipedia.org/wiki/Pythagorean_theorem

And it's source code looks sth like:

Sorry for bad English for writing the title. What I would like to do is to determine the location of df by comparing with another data frame df2. df is a data frame that shows the variation of longitude and latitude in a period of time. It is a data frame with more than 40,000 of rows.

so I'm trying to check if a Point is located inside a Circle. I created these 2 classes:

How do I get a definition's name as a symbol in Scheme and/or Racket? Suppose I have these definitions:

I am programming smth like geometry dash in pygame but my jump mechanic is flawed. Whenever i cancel the jump it gli tches and you cant jump sometimes.