Difference Equations

ComponentSoftware Diff (CSDiff) is a free, advanced file-difference analysis tool for Microsoft Windows. CSDiff is a great asset to anyone in need of analyzing changes which have been made between two revisions of the same file or folder. CSDiff is commonly used when analyzing program source... Platforms: Windows

Gerris project is an Open Source Free Software library for the solution of the partial differential equations describing fluid flow. Gerris is supported by NIWA (National Institute of Water and Atmospheric research) and by the Marsden Fund of the Royal Society of New Zealand. The code is... Platforms: *nix

KAlgebra is a MathML-based graphic calculator, thought to bring to the user its power by solving expressions written in MathML or calculating converted common equations to MathML. Whats New in This Release: ExpressionEdit improved in many ways: - History added - Highlighting for MathML... Platforms: *nix

This calculator allows you to enter equations as you would write them on paper, for example - 17-(9*8) - 7 + 34.23 - but where this calculator really shines is in the "steps" box, there it will show you how it solved the equation step by step. Advance features display the result in hexadecimal,... Platforms: Windows

Python Stencil Environment also know as PySE is a new python library for solving Partial Differential Equations with the Finite Difference Method (FDM). This is still a quite new library, and the current release must be considered as beta software. It is quite rough around the edges,... Platforms: *nix

Modest Ordinary Differential Equation Library is a C++ library to model rate equations. MODEL is a numeric simulation library written during my PhD to simulate systems of rate equations describing Vertical Cavity Surface Emitting Lasers (VCSELs). I decided to write one myself after looking at... Platforms: *nix

X2 - Equations calculates the real roots of rational second grade equations, showing the results with fractions (Yeah!) It also gives geometric info related to the parabola. Platforms: Windows

Eiffel Software offers development tools that make a concrete and immediate difference in how companies produce software. The companys flagship product, EiffelStudio, is available under Dual Licensing: choose between Open Source and commercial.. Home page for object technology, Eiffel, software... Platforms: *nix

Laeqed is a Latex equation editor specifically targeted at producing PNG images of math equations for use on web pages. Laeqed runs wherever Java and Latex runs, i.e. Linux, Windows, Mac... The Latex equation, preamble, postamble and dvipng options are saved with the PNG as meta data. This... Platforms: *nix

This calculator allows you to enter equations as you would write them on paper, for example - 17-(9*8) - 7 + 34.23 - but where this calculator really shines is in the "steps" box, there it will show you how it solved the equation step by step. Advance features display the result in hexadecimal,... Platforms: Windows

Smart-It is a business management and accounting software system with a difference. It is not only an office essential, it leads to increased productivity, improved performance and ultimately considerable savings in time, money and personnel.Smart-it offers a range of features that place us a big... Platforms: Windows

Math::Polynomial::Solve is a Perl module to find the roots of polynomial equations. SYNOPSIS use Math::Complex; # The roots may be complex numbers. use Math::Polynomial::Solve qw(poly_roots); my @x = poly_roots(@coefficients); or use Math::Complex; # The roots may be complex numbers.... Platforms: *nix

K3DSurf is a program to visualize and manipulate Mathematical models in three, four, five and six dimensions. K3DSurf supports Parametric equations and Isosurfaces. Features Studying mathematical surfaces with K3DSurf include doing: Interactive visualization with mouse events (Right:... Platforms: Mac

Slopinator is a basic application that solves some of the most tedious and boring equations including the quadratic formula and others. Platforms: Mac

PETSc is a suite of data structures and routines for the scalable (parallel) solution of scientific applications modeled by partial differential equations. PETSc library employs the MPI standard for all message-passing communication. PETSc is easy to use for beginners. Moreover, its careful... Platforms: *nix

XMDS is a code generator that integrates equations. You write them down in human readable form in a XML file, and it goes away and writes and compiles a C++ program that integrates those equations as fast as it can possibly be done in your architecture. Platforms: *nix

Very intuitive way of handling new news and old news: This is the big difference with most readers, SlimRss doesn't store all the news. News is only important when it's new..and when you haven't seen it. Once you seen it SlimRss will get rid of it. Saving hard disk space and you... Platforms: Windows

Visual difference metrics can predict whether differences between two images are visible to the human observer or not. Such metrics are used for testing either visibility of information (whether we can see important visual information) or visibility of noise (to make sure we do not see any... Platforms: *nix

Diaphontein Equations are of the type ax + by = c. Because of the large number of possible solutions it is very difficult to solve these manually. This freeware utility can solve them for x and y within a specified range. Platforms: Windows

Test::Number::Delta is a Perl module to compare the difference between numbers against a given tolerance. SYNOPSIS # Import test functions use Test::Number::Delta; # Equality test with default tolerance delta_ok( 1e-5, 2e-5, values within 1e-6); # Inequality test with default tolerance... Platforms: *nix