With this AutoCAD add-on you can create mathematical curves.
Curves can be defined as explicit, parametric or polar functions.
Function's formula can also be changed dynamically by changing
parameter 'p' value(parametric modeling).
Use standard AutoCAD commands(revolve, extrude, ...) to create
solids and surfaces from these mathematical functions.

MathShapesPro2X is an useful tool for designers who need precise
analytical definition of curves(surfaces, solids) in their drawings.

• SurfX3D 2.0
  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. ...

• Advanced Curve Creator 1.0
  Advanced Curve Creator is add-on software to AutoCAD, MAP or Civil3D, (2007, 2008, 2009)

• K3DSurf 0.5.4
  K3DSurf is a program to visualize and manipulate Multidimensional surfaces by using Mathematical equations. It's also a Modeler for POV-Ray in the area of parametric surfaces. Features : * 3D, 4D, 5D and 6D HyperObjects visualization. * Full...

• DataScene Lite 2.0.6.10
  DataScene Lite is a data graphing and data analysis software package

• DataScene 2.0.6.10
  DataScene is a data graphing, animation, and analysis software package. It allows the user to easily plot 2D & 3D graphs (Area, Bar, Pie, Line, Surface, Ploar, and more) with scientific, financial, and statistical data, to manipulate, print, and export high quality graphs, to analyze data with various mathematical methods (fitting curves,...