Apps similar to PTC Mathcad include Mathematica. It's paid, but Maxima and Numbat are free. Other options are Maple, wxMaxima, SMath Studio and fxSolver. Calculators like PTC Mathcad are a crowded field, with more than 25 alternatives for Windows, Linux, Mac, the web and Android.
Program that solves numerically algebraic systems of non-linear, and linear, equations. It also includes a database of thermodynamical properties for many substances and a symbolic mathematical program to perform mathematical operations.
Dysolve is a notepad-style math solver that performs complex mathematical and engineering calculations. It is a user-friendly alternative to software like Matlab or Mathcad, allowing users to create calculation documents on their smartphones.
SIMO is an iOS programming environment for Matlab. SIMO runs locally on device and hence internet connection is not required. Users can create, edit and run Matlab code, and create 2D and 3D plots. Find out more: http://www.simo.com.hk/.
Calculeaf is an online engineering calculation worksheet for unit-aware math, calculation notes, plots, templates, and shareable technical work.
Free, open-source calculation notebook for engineers: physical units, symbolic math, matrices and plots with instant LaTeX output. Print or export to pdflatex-ready .tex. Runs locally on Windows and Linux, no cloud, no account.
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Web-based machine design and verification software to ISO, DIN, VDI and ASME standards, with shareable PDF calculation reports.
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