Made a simple geometric workbench

misc/geometric_workbench/README.md

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+# Geometric Workbench #
+This is just a simple idea I had to create a simple workbench with small tools
+to calculate the area of circles, triangles and rectangels. The whole point of
+this is to input data to for example the rectangle program and the triangle
+program and save those numbers in shell variables and to able to extract the
+triangle from the rectangle. To the input is expected to come from STDIN and
+output goes to STDOUT. So all those programs can exchange numbers with pipes.