From Table Curve website description:
TableCurve 2D® gives engineers and researchers the power to find the ideal model
for even the most complex data, by putting thousands of equations at their fingertips.
TableCurve 2D's built-in library includes a wide array of linear and nonlinear models
for any application including equations that may never have been considered, from
simple linear equations to high order Chebyshev polynomials. TableCurve 2D is the
automatic choice for curve-fitting and data modeling for critical research..
Table Curve 2D
Copyrighted and owned by Systat Software Inc.
used by Chem-Engineering Services in engineering work
Contact Systat for software
inquiries or purchasing
Endorsement
Chem-Engineering Services has used TableCurve 2D® software prior versions for
over 15 years for the development of scientific and engineering calculations, and
software development.  Chem-Engineering Services fully endorses Table Curve
software, and strongly believes that Table Curve is the finest automated curve fitting
software in the world.  Table Curve is extremely friendly to use, and the import/export
features are tremendously powerful.  For the best equation fitting software, look no
further.
Websites: