Greetings !
I want to show you my latest project - editor for curves and surfaces with XR support: MathView.
It can be used by students for exploring surface behaviour or by designers to get unusual geometry for their projects.
Presently it supports following features:
- Combination 6 materials and 18 textures to achieve desired effect
- Changing projection of color map
- Editing object parameters
- Shifting parameters to see changes in real time.
- Editing equation (for some objects)
- Objects description in math notation
- Taking screenshots
- Downloading geometry in ‘OBJ’ format
- XR mode
GUI is simple and intuitive, although short help is also available.
I guess, collection of curves and surfaces will grow fast, as they are free and has no licence 
.
Sources of information and inspiration:
www.wolframalpha.com
virtualmathmuseum.org
3d-meier.de/tut3/Seite0.html
www.frassek.org/3d-mathe
My special thanks to @manthrax, @prisoner849 and ChatGPT
for support and assistance.
Comments, suggestions and criticism are highly appreciated as usual.
