1)   MultyGraphiX 1.0 MultyGraphix designed to plot any mathematical 2D and 3D, explicit and parametric functions. It's allow to plot function in the Cartesian, polar, cylindrical and spherical systems of coordinates. It's useful for educators, and students. 2)   Calc 3D 0.0.31 Calc3D is a calculator for vectors, matrices, complex numbers, quaternions and coordinates. For objects like point, line, plane and sphere distances, intersections, volume, area of squeres, area of a triangle can be calculated. (5 languages) 3)   ScriptC ActiveX Control 2.0 ScriptC is small and effectual programming C-like language. Optimized for engineers and scientific users alike, the ScriptC component can be easy plugged directly into your applications.ScriptC supports VB, VC++, Delphi, VB.NET, VBA. 4)   CalcCoord 0.0.1 transforms cartesian, spherical and cylindrical coordinates (5 languages)