# Which program/language was used to plot the point at infinity of these images? (See the images)

The code of the first image was provided by Squeamish Ossifrage in this answer. In wich language/program was plot? In JavaScript or GeoGebra?

Also, I found in YouTube the image below with the point at infinity (north pole) plot in a projective plane using stereographic projection. The YouTube channel is Trustica. I copy the picture from the website attached in the description of the video. What language/program was used? Any ideas?

I tried to replicate the graphs in Mathematica but failed.

• It is Asymptote as given in the asnwer Appendix A: Asymptote code for affine elliptic curve plot – kelalaka Mar 17 at 21:22
• For the second image: I saw the Trustica videos, too, and wanted to plot it myself. I wrote them, but never got an answer. I just assume that they did it with SageMath. If you find the sourcecode please post it here! I would love to plot it myself, too! – Titanlord Mar 18 at 11:17
• Thank you @kelalaka! I never hear about that language. – Diego Olvera Mar 18 at 22:32
• here, and here some other examples. – kelalaka Mar 18 at 22:33
• @Titanlord It should be asymptote, too, at least you can make it. – kelalaka Mar 18 at 22:38