The best free alternative to PTC Mathcad is SMath Studio. If that doesn't suit you, our users have ranked more than 25 alternatives to PTC Mathcad and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to PTC Mathcad are Maxima, wxMaxima, fxSolver and Calcpad.
SMath Studio is a math program with 'paper'-like interface and numerous computing features. It has an ability to work with systems, matrices, vectors, complex numbers, infinities and fractions. SMath Studio includes integrated mathematical reference book.
Maxima is a system for the manipulation of symbolic and numerical expressions, including differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, polynomials, and sets, lists, vectors, matrices, and tensors.
wxMaxima is a document based interface for the computer algebra system Maxima. wxMaxima provides menus and dialogs for many common maxima commands, autocompletion, inline plots and simple animations.
Online math solver, equation editor and database, graphing calculator and science/engineering problem helper.
Calcpad is a lightweight mathematical platform for cloud and desktop. It parses simple text scripts and converts them into professional Html reports. Supports complex numbers, variables, functions, graphing, units and numerical methods.
Online engineering calculator that automatically checks/converts units, solves systems of equations, plots, and allows you to share your work with others.
Wolfram Language is a symbolic language, deliberately designed with the breadth and unity needed to develop powerful programs quickly. By integrating high-level forms—like Image, GeoPolygon or Molecule—along with advanced superfunctions—such as ImageIdentify or...
Mathics is a general purpose computer algebra system (CAS) and designed to be a free, light-weight alternative to Mathematica. It's programmable using a Mathematica like language and uses a web interface for user interaction.
SymPy is a Python library for symbolic computation. The stated goals of the library are to become a full-featured computer algebra system and to keep a simple code base to promote extensibility and comprehensibility.
Xcos is a graphical editor to design hybrid dynamical systems models. Models can be designed, loaded, saved, compiled and simulated.
CADWOLF is a web based collaborative engineering platform. Create documents with equations, plots, loops, etc. Direct link to CAD models with systems to build structures in part trees. All you need is a web browser.
WIRIS cas is an online platform for mathematical calculations designed for education. You can access a powerful calculation toolbar through an HTML page that includes integrals and limits calculation, function graphing in 2D or 3D and symbolic matrices manipulation, among others.
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Free to commercial use. Interface is almost like Mathcad15.