MB Name Compatibility is a form of divination technique that gives the compatibility between names of two people. You can use this method to know how well you get along with your partner.

Visualizes and studies functions of one variable to find roots, extrema, integral, derivatives, graph. Results can be saved or printed. You can copy the graph to the clipboard. You have one-click control of the graph with zooming, panning, centering

XCCalc is a Floating-Point calculator program with the following features:- Can calculate with complex numbers like z = x + i*y- Extra precision to millions of decimal places- Uses Fast Hartley Transform to speed-up long multipliesand more.

XZCalc is a calculator program with the following features:- Can calculate with quaternions, complex matrices and scalars- Extra precision to millions of decimal placesand more

XMCalc is a Floating-Point calculator program with the following features:- Can calculate with real matrices, real scalars and quaternions- Extra precision to millions of decimal placesand more

UnitClassic-A is a professional and comprehensive unit-convert computer program. It has very useful interface that is quick in action, easy to use and other distinctive features.

Math Challenge is a digital flash card system that can be completely customized to the level of your child. You can set up custom preferences for each child and modify difficulty settings as they improve.

While you draw, Tess will maintain the symmetry group you have chosen; 11 rosette (circular), all 7 frieze (strip), and all 17 wallpaper groups are included. Illustrations may be printed from Tess or exported to JIF, PCX, DXF, and other formats.