Recent content by Carol_m

Hello xts, Thank you for your reply and sorry if I am being too naive but I do not follow your answer. Could you please explain me a bit more? (sorry but this is not my background) From what I have read in textbooks I know that you can project the surface of a sphere in a 2-D plane, my...

Hello, Is it possible to project a hypersphere (a 3-sphere) onto a plane? is this possible using stereographic projection? Please, if this is possible I would appreciate a nice explain me about how to do it. Thank you! Carol

Hi Coelho, Thank you for pointing that out, I did not think about it! On the other hand, do you know if the steregraphic projection formula that I wrote is correct? Thanks for your help in advance :)

Hello, I was wondering if anyboday can clarify this for me. I am trying to project a sphere into a plane, I am using the stereogriphic projection which I believe in cartesian coordinates is: x'=x/(R^2-z) y'=y/(R^2-z) where x' and y' are the coordinates in the plane, (x,y,z) the...

Hi coelho! Thank you very much for your detailed response it has been really useful! many thanks to henry_m too for the help! You guys are great! Cheers,

Hi henry_m, Please check the figure attached so you can see what I meant about the "quarter moon" shape. Sorry if I wasn't clear, I didn't know how to call it :) I am an engineer and this is part of a problem that I need to solve. Basically, I want to map every point in the circle to a...

Hi JasonRF, It certainly needs to be conformal... Thank you for your great answer I will look into this direction, and sorry I posted my reply with the attached figure before reading yours.

Basically my question is: I have a circle an every point in the circle as (x,y). I need a transformation that changes every point in the circle to a point in a rectangle (x',y') so I could write x' in terms of x and y' in terms of y. If you look in the attachement you can see what I mean...

Hello! I am trying to transform a circle into a "quarter moon shape". This is that every point in the circle is mapped into the "quarter moon shape" - therefore squeezed. In particular I am looking for a expression that relates x x' and y y' ... Can any bright mind help me :) ? Thank you

Dear henry_m, Thank you very much for your reply. Could you please give me a reference to this so I can find the explicit formula? Thanks again!

Hello! Please I need some help with this: Is it possible to transform a circle into a rectangle? If so what would be the expressions of x' and y' in terms of x and y. Thank you in advance!