radu/LaTeX-examples: More than 570 examples for the usage of LaTeX. @ 2f86de092882bc707b48d0612df9140807833fd1

Martin Thoma 6100c30510 added rectangle example		14 lat temu
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Makefile	6100c30510 added rectangle example	14 lat temu
rectangle-1.tex	6100c30510 added rectangle example	14 lat temu
rectangle-2.tex	6100c30510 added rectangle example	14 lat temu
rectangle-3.tex	6100c30510 added rectangle example	14 lat temu