Math Illustrations is a lite version of Geometry Expressions without the symbolic features. It is useful for illustrating mathematical problems, or for doing geometry numerically.
Mechanical Expressions adds physical properties such as force, mass, velocity and acceleration to you geometry model. It allows you to get symbolic results for reaction forces and equations of motion. You can even create dynamic simulations as apps.
Computerized mathematical modeling
Create conceptual designs and generate explicit mathematics
Copy the mathematics to Maple or Mathematica for further analysis or optimization
Visualize by pasting results back into Geometry Expressions
Document your analysis by exporting drawing and mathematics into your office suite
Mathematical problems emerge naturally from real world situations
Geometry is fully integrated into the rest of mathematics
Students can be exposed to problem formulation and idealization
Choose appropriate solution technique: numeric, automated symbolic, or by-hand