%%
%% Ein Beispiel der DANTE-Edition
%%
%% 1. Auflage
%%
%% Beispiel 15-02-8 auf Seite 741.
%%
%% Copyright (C) 2011 Herbert Voss
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See
http://www.latex-project.org/lppl.txt for details.
%%
%%
%% ====
% Show page(s) 1
%%
defaultfont:="ptmr8r";
warningcheck:=0;
% --- start of displayed preamble in the book ---
% --- end of displayed preamble in the book ---
% %
beginfig(1)
pair A, B, C;
A:=(0,0); B:=(2cm,0); C:=(0,2cm);
draw A--B--C--cycle;
draw 1/2[A,B]--C;
draw 1/2[B,C]--A;
draw 1/2[C,A]--B;
draw 1/3 A + 1/3 B + 1/3 C
withpen pencircle scaled 4bp;
endfig;
end;