mswlogo in an interpreter of logo programming language. this easy to use language was created for eductionalal matters.
its interface is simple and easy to use. with a window where you may see the outcome of our program, and another one for introducing commands.
the programs allows you to introduce changes in the way that graphics are created (the color and width of each stroke,and the size and type of foundation, etc.). also it lets you adjust the area that is visible.
mswlogo includes several example programs, and despite its being complicated, it is well worth buying.