I use *Mathematica* to draw this cone ![ScreenHunter 276.png](/image?hash=fd333efaae66d578d4bb0a55854ced64ffc2761eb466497c1a69181f544393a6) How to draw that cone with TeX?
I use *Mathematica* to draw this cone ![ScreenHunter 276.png](/image?hash=fd333efaae66d578d4bb0a55854ced64ffc2761eb466497c1a69181f544393a6) How to draw that cone with TeX?