% This picture represents the tangent space at a point in a smooth manifold
% Copyright Mezzo (C) 2021
\begin{tikzpicture}[x=0.75pt, y=0.75pt, yscale=-1]
  height of 300

  % The manifold
  \draw (112.04,66.62) node[below right, font=\scriptsize]{$M$};
  \draw (100,108) .. controls (140,78) and (188,143) 
                  .. (196,182) ;
  \draw (196.2,181.8) .. controls (211.8,159.6) and (265.71,101.03) 
                      .. (318.8,111.8) ;
  \draw (318.8,111.8) .. controls (323.67,112.42) and (330.33,115.42) 
                      .. (335,118) ;
  \draw[dotted] (219.48,53.8) .. controls (230.71,56.06) and (244.01,58.07) 
                              .. (259,63.39) ;
  \draw (259,63.39) .. controls (288.81,75.27) and (332.14,114.93) 
                    .. (335,118) ;
  \draw (100,108) .. controls (113.56,84.56) and (160.04,48.06) 
                  .. (219.48,53.8) ;

  % A point p in the manifold
  \filldraw (232.9,84.2) circle (1pt)
                         node[below right, font=\scriptsize]{$p$};

  % The tangent space at p
  \draw (238.68,46.2) -- (294.01,93.72) 
                      -- (224.01,122.72) 
                      -- (168.68,75.2) 
                      -- cycle ;
  \draw (173.51,76.9) node[below right, 
                           font=\scriptsize, 
                           rotate=-337.86,
                           xslant=-0.54]{$T_{p} M$};
\end{tikzpicture}
