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free software that provides a generic platform for pre- and post-processing for numerical simulation.

  • pandas is an open-source BSD-licensed library providing data structures and data analysis tools for the Python programming language.
  • Perl Data Language provides large multidimensional arrays for the Perl programming language, and utilities for image processing and graphical plotting.
  • Plotly – Plotting library, Python command line, and graphical interface for analyzing data and creating browser-based graphs. Available for RPythonMATLABJulia, and Perl.
  • Rlab is another free-software computer program which bears a strong resemblance to MATLAB. Rlab development ceased for several years but it was revived as RlabPlus.
  • ScaLAPACK is a library of high-performance linear algebra routines for parallel distributed-memory machines that features functionality similar to LAPACK (solvers for dense and banded linear systems, least-squares problems, eigenvalue problems, and singular-value problem).
  • Scilab is advanced numerical analysis package similar to MATLAB or Octave. Comes with a complete GUI and Xcos which is alternative to Simulink. (free softwareGPL-compatible CeCILL license)
  • Sysquake is a computing environment with interactive graphics for mathematics, physics and engineering. Like other applications from Calerga, it is based on a MATLAB-compatible language.
  • TK Solver is a mathematical modeling and problem-solving software system based on a declarative, rule-based language, commercialized by Universal Technical Systems, Inc.
  • Torch is a deep-learning library with support for manipulation, statistical analysis and presentation of Tensors.
  • XLfit, A plugin to Excel which provides curve-fitting and statistical analysis.