DAE Solver 2.1
Device: Mac OS
Category: Education
Price: Free, Version: 2.0 -> 2.1 (iTunes)
Description:Solves systems of algebraic and/or differential equations. Some higher index problems (index 2 and above) can be solved too, including problems on mechanical systems with holonomic constraints. Continuation along branches of stationary solutions is possible too. DAE Solver will perform linear stability analysis and it will search for turning points, simple bifurcation points, and Hopf bifurcation points. Multiple documents are allowed, with unlimited undo. Results are generated as tables and graphs that can be copied to the Clipboard, and animations that can be saved as movie files. AppleScript is supported, with scripts that DAE Solver builds as a problem is defined and that can later be customized. Mac OS X 10.6.8 is still supported.
What's New
No changes in any of the numerical algorithms, all changes in this version are interface related. There is a new user interface for problem definition. Natural language can be used to specify a problem, for example 'solve y = cos(y)'. In this new interface, graphs are automatically generated. For experienced users who prefer the original user interface, that interface is still available.Autoscaling is now the default behavior of graphs but can be disabled whenever axis properties are modified. Clicking on a graph component, an axis for example, or a title, or a curve, brings up the corresponding editor.Curves, points, and links now have the ability to switch solvers automatically. This can be a convenient feature during problem development, when different solvers are being tested until the right solver is found.
DAE Solver