LaTeX.org

Hi everybody,

For several days I tried to find a way to put a red bullet at the intersection of two curves.
I put the code here.


\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{fullpage}
\usepackage{tikz}
\usepackage{pgfplots}

\usetikzlibrary{calc,3d}

\begin{document}
\begin ...