Apps similar to GNU Octave include R (programming language), which is free and open source. Other options are Jupyter, MATLAB, Mathematica and SageMath. There's no shortage of Numerical Computation Software like GNU Octave, with more than 50 alternatives for Windows, Linux, Mac, the web and Android.
MathJournal is an interactive program for the Tablet PC that provides a natural and intuitive environment for solving mathematical and engineering problems. MathJournal recognizes handwritten mathematical expressions, and then displays a list of relevant solution types to the...
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The HP Prime is a great scientific and graphic calculator for high school and university. The App allows to develop not only for the real calculator but also for computers and mobile devices.
United States
WolfCalc is a light minimal front end to the powerful Wolfram|Alpha™ Computational Knowledge Engine™, which is one of the most powerful calculators in the world and can be used to solve a large variety of problems.
Anoc allows you to create and manage Octave projects directly on your Android device and generate the result and plots by using the Octave service available at verbosus.com
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Math Notepad is a web based editor, which allows you do do mathematical calculations and plot graphs. It supports real and complex numbers, matrices, and units, and comes with all common math functions built in.
Mathmatiz is the best android calculator. It provides its users technical computation ability similar to the famous computation software MATLAB on an Android phone, including m file support and plotting.
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/.
