Tess (Mac)
v1.66
While you draw, Tess will maintain the symmetry group you have chosen- 24 rosette (circular), all 7 frieze (strip), and all 17 wallpaper groups are included. Illustrations may be printed from Tess or exported to GIF, JIF, PCX, DXF, SVG, and other formats.










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Valgetal ("falling numbers" in Dutch) is an educational falling blocks-style math game with 20 progressively difficult levels for addition, subtraction, multiplication, and division. It is a clever twist on mathematical games and lots of fun.










WINKS (Windows KWIKSTAT) makes statistical data analysis understandable and easy to perform for the researcher, student, or scientist. Award-winning statistics program with thousands of users in over 65 countries.










Algebra Vision is a unique educational software tool to help students develop algebraic problem solving strategies. It provides an environment to play and see algebra in a more tangible light.

