Curvus Pro X for Mac

From Arizona Software:

Intuitive and User Friendly Interface:

• So easy to use that a curve can be drawn in a few seconds only
• Intuitive expression syntax
• Very convenient equation editor
• Enhanced 2D and 3D navigation
• Animations
• 3D manipulation in real-time

Functionality:

• Explicit & implicit equations, parametric curves & surfaces, differential equations, vector & scalar fields, logical relations, discrete series
• Cartesian, polar, spherical, cylinder coordinates, etc.
• Several operators (conditions, sum, product, integral, etc.)
• Custom constant and function definitions
• Variable parameters (simultaneous representation of a curve family)
• Over 70 functions and 20 constants integrated, including Bessel, error and Gamma functions, etc.

Function study and numerical calculation:

• Interactive representation and calculation of tangents, gradients, osculating circles, partial derivatives, tangent plane, etc.
• Integration and evaluation of volumina, areas and curve lengths
• Root finding (extremum, inflexion point or intersection)

Professional layout and export capabilities:

• Numerous drawing options
• Optimal quality printing
• Exportation to the Clipboard in different standard formats (PDF, TIFF, EPS)

And for those who wants even more:

• Complex algebrical calculator
• Sound synthesizer
• Custom plug-ins
• and much more...