1)   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)
vectors, matrix, complex, quaternion, intersection, addition, division, subtraction, spatproduct, skalarproduct,

 2)   Calc 3D Pro 2.1.4
Calculator for statistic, function plottting, vectors, matrices, complex numbers, coordinates, intersections. For objects like point, line, plane and sphere distances, intersections, volume, area of squeres, area of a triangle can be calculated.
statistic, fit, vectors, matrix, complex, quaternion, intersection, polygon, division, subtraction,

 3)   3DINTERSECTION for AutoCAD 3.6
An application for AUTOCAD 2002-2009, which determines the intersection curves between 2 sets consisting of 3DFACE, 3DSOLID or 3DMESH entities.
3D, INTERSECTION, AUTOCAD, Software, 3DINT, 3DINTERS, 3DFACE, 3DSOLID, ACIS, 3DMESH,

 4)   DEVELOPED SECTION for AutoCAD 1.0
An application for AUTOCAD 2002-2009, which determines the developed section of one set of 3DSOLID, 3DMESH or 3DFACE entities and vertical planes passing through a 2D POLYLINE.
SECTION, DEVELOPED, 3D, INTERSECTION, AUTOCAD, Software, DSECT, 3DSOLID, 3DFACE, 3DMESH,

 5)   TRIANGULATION, ISOLINES, VOLUME & 3DINTERSECTION 3.51
TRIANGULATION, ISOLINES, VOLUME and 3DINTERSECTION; 4 functions for IntelliCAD
TRIANGULATION, ISOLINES, VOLUME, 3D, INTERSECTION, IntelliCAD, TOPOGRAPHY, Software, SHAREWARE, CAD,