.: Explicit

SurfX3D  SurfX3D 1.0
Surface Explorer 3D plots mathematical surfaces in 3D. User defined surface equations can be explicit, implicit, or parametric. Surface and color equations are specified by user. Can export to clipboard, VRML, POV, DXF, printer. C++ source code included. Freeware.
plot, math, mathematical, surface, equation, explicit, implicit, parametric, color, viewer,

CoCreate Modeling Personal Edition  CoCreate Modeling Personal Edition 2.0
If you have read about explicit, geometry-based 3D CAD, you know it is the best approach for creating flexible, lightweight designs. Now, PTC brings you a free download from the CoCreate product family - CoCreate Modeling Personal Edition, a 3D CAD system you can use for assemblies with up to 60 parts. Download a FREE version of CoCreate Modeling Personal Edition today and see how liberating an explicit, geometry-based 3D CAD system can be.
ptc, free, 3d cad, software, explicit, explicit modeling, explicit approach, cocreate, pe 2, pe 2.0,