PTC Mathcad is a computer aided engineering (CAE) software application developed by PTC Inc. that enables users to perform numerical calculations and symbolic manipulation, analyze and graphically display data, and document their work. With PTC Mathcad, users can create, share, and collaborate on engineering calculations to solve complex problems and design better products. It offers a range of features that include interactive calculations, equation solving, graphing, plotting, and 3D imaging. It also offers a library of functions and equations for common engineering calculations. PTC Mathcad is used by engineers, scientists, and academics in a variety of industries, including aerospace, automotive, electronics, and medical device manufacturing.
SMath Studio is the best approximation to Mathcad in terms of feel and interface features. The main shortcomings of SMath Studio relate to graphics and some add-ins, but it is only a matter of time before they catch up with Mathcad.
Works similar to Mathcad, very powerful and free.
Mathcad works with units with an engineer's point of view, mathica works with an academic / theoretical point of view for mathematicians.
Discontinued The website and software have not been updated for the past five years.
MathStudio is a powerful math program that is very easy to use and can also be used for engineering calculations. For the price, this is a superior program.
Discontinued Currently not maintained as of January 2014.
SMath Studio
Mathematica
SciPy & Numpy
wxMaxima
fxSolver
Maxima
Xcos
SymPy
Maple
Mirai Math
MathStudio
Ascend
Addi
CompPad
WIRIS cas
Swift Calcs
SymbolicC++
Axiom
Free for commercial use. The interface is almost like Mathcad15.