Analog-insydes with this external link is a Mathematica toolbox for modeling, analysis, and design of analog electronic circuits, tailored specifically for industrial applications.
Atlas 2 for Mathematica with this external link is a Mathematica toolbox for doing modern differential geometry calculations. The tool includes a lot of features like access to Differential Geometry Library, Atlas palette etc.
FeynArts is a Mathematica package for the generation and visualization of Feynman diagrams and amplitudes by Thomas Hahn. By the same author:FormCalc, a Mathematica package for the calculation of tree-level and one-loop Feynman diagrams, and LoopTools, a package for evaluation of scalar and tensor one-loop integrals based on the FF package by G.J. van Oldenborgh.
JanVerspechtMultiDim, Jan Verspecht package for multidimensional interpolation and curve fitting functions which can handle scattered input data. (495 euro, exclusive 21% tax)
Obtuse Package by Ingolf Dahl contains routines and tools for obtuse angle shadowing networks and distance-based interpolation between scattered, multidimensional points. Four variants of distance-based interpolation can be compared with (coordinate-based) 2D Delaunay interpolation. Online documentation is available.
mathStatica is a package for applied and theoretical statistics.
DesignerUnits adds heavy-duty, visually pleasing measurement units. The library is free, open source code including legacy Units translation.
Macroprocessor package (free): Macros are typically associated with the C programming language. However the idea, that code gets pre-processed into a more efficient form prior to execution, is generally applicable.
MATLink by rsmenon and szhorvat is a Mathematica application for seamless two-way communication and data transfer with MATLAB.
A NURBS Package for Mathematica, developed by Steve B, with assistance from Wolfram Research staff, as part of their 2008 Advanced Mathematica Summer School. Download from http://pruffle.mit.edu/mathematica/NURBS/
Please add any missing package also, if there is additional information.
Last update June 20, 2013