iD3 has been discontinued. Similar apps include PyCharm, which is open source with a free version. Other options are Jupyter, GNU Octave, SageMath and RStudio. There's no shortage of Numerical Computation Software like iD3, with more than 25 alternatives for Windows, Linux, Mac, the web and self-hosting.
FreeMat is an environment for rapid engineering and scientific processing. It is similar to commercial systems such as MATLAB from Mathworks and IDL from Research Systems, but is Open Source.
OpenModelica – A Free Modelica Environment! OpenModelica is an open-source Modelica-based modeling and simulation environment intended for industrial and academic usage. Its long-term development is supported by a non-profit organization – the Open Source Modelica Consortium (OS.
PyDSTool is a sophisticated & integrated simulation and analysis environment for dynamical systems models of physical systems (ODEs, DAEs, maps, and hybrid systems).
Polynote is a different kind of notebook. It supports mixing multiple languages in one notebook, and sharing data between them seamlessly. It encourages reproducible notebooks with its immutable data model.
United States
Axiom is a general purpose Computer Algebra system. It is useful for research and development of mathematical algorithms. It defines a strongly typed, mathematically correct type hierarchy. It has a programming language and a built-in compiler.
Open-source software for mathematical modeling, nonlinear equations, and optimization problems, supporting dynamic systems and large-scale models, with both command-line and graphical interfaces, specialized modeling language, and advanced solver architecture.
Designed for scientific computation, this language and editor provides low-cost abstraction and safety checks, focusing on matrix operations with syntax parity to scientific papers. It offers math rendering, real-time dimension checks, and intuitive user experience.
Miniconda is a free minimal installer for conda. It is a small bootstrap version of Anaconda that includes only conda, Python, the packages they both depend on, and a small number of other useful packages (like pip, zlib, and a few others).
Graphical frontend for GNU Octave. Edit formulas in native mathematical notation. Available / tested for Linux x586 / x86_64, WinXP, Vista, and MacOS.
Thunderpad (formerly Textpad) is a simple, general-purpose and cross-platform text editor written in C++ using the Qt libraries. Thunderpad aims to be faster and more lightweight than most text editors, but as useful as them.
Mexico
Pe, short for Programmer’s Editor, is an open source text editor for BeOS. It is targeted towards source-code editing, and features syntax highlighting for a large number of programming languages. It also works as a basic source-level HTML editor, with some HTML autocompletion...
SimulationX is an interdisciplinary, multi-domain simulation software for the design, analysis and optimization of complex systems on a single platform. More than 500 ready-to-use model elements and over 300 examples of models from 11 application areas simplify and accelerate...
Germany
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