latex-pictures

 % This diagram represents the relationship between standard number sets
 % Copyright Pablo (C) 2021
 \begin{tikzpicture}
   % The complex numbers
   \draw (-3,-2.5) rectangle (3,2.5) 
         (3,-2.5) node[right]{$\mathbb{C}$};
 
   % The real numbers
   \draw (0,0) circle (2) 
         (2, 0) node[left]{$\mathbb{R}$};
 
   % The rational numbers
   \draw (-0.5,0) circle (1.5) 
         (1,0) node[left]{$\mathbb{Q}$};
 
   % The integers
   \draw (-1,0) circle (1) 
         (0,0) node[left]{$\mathbb{Z}$};
 
   % The natural numbers
   \draw (-1.5,0) circle (0.5) 
         (-1.5,0) node{$\mathbb{N}$};
 \end{tikzpicture}