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Linear solvers

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Ben Coman

Linear solvers

While reading around on Cassowary for constraint based UI, I noticed the original author and others expanded their work to a more general linear solver system Balsberg. Maybe something useful to many business, so just thought I'd drop some links...

* Solving Interactive Logic Puzzles With Object-Constraints
https://www.hpi.uni-potsdam.de/hirschfeld/publications/media/GraberFelgentreffHirschfeldBorning_2014_SolvingInteractiveLogicPuzzlesWithObjectConstraintsAnExperienceReportUsingBabelsbergSForSqueakSmalltalk_AuthorsVersion.pdf

* https://github.com/babelsberg/babelsberg-s

* https://homes.cs.washington.edu/~borning/papers/felgentreff-babelsberg-semantics-2014.pdf

* https://www.hpi.uni-potsdam.de/hirschfeld/publications/media/FelgentreffLehmannHirschfeldGerstenbergReschkeRueckertSieglerGraichenNicolaiSwart_2016_AutomaticallySelectingAndOptimizingConstraintSolverProceduresForObjectConstraintLanguages_AuthorsVersion.pdf

btw, what does PolyMath/SciSmalltalk offer in the way of linear solvers?

cheers -ben

wernerk

Re: Linear solvers

On 10/28/2017 04:23 PM, Ben Coman wrote:
> btw, what does PolyMath/SciSmalltalk offer in the way of linear solvers?
Hi Ben,
so far no linear solvers in PolyMath. i made a small constraint solver
for PolyMath that is not restricted to linear problems, hence
necessarily slower than linear solvers & not fast enough for
UI-layout-problems. a general overview of what that package does is
here:
https://github.com/SergeStinckwich/SciSmalltalk/wiki/RealInterval-Example-Algos
. the constraint solver is described somewhere in the middle of that page.
werner

Ben Coman

Re: Linear solvers

thx for the tip.

cheers -ben

On Sat, Oct 28, 2017 at 11:47 PM, werner kassens <[hidden email]> wrote:

On 10/28/2017 04:23 PM, Ben Coman wrote:
> btw, what does PolyMath/SciSmalltalk offer in the way of linear solvers?
Hi Ben,
so far no linear solvers in PolyMath. i made a small constraint solver
for PolyMath that is not restricted to linear problems, hence
necessarily slower than linear solvers & not fast enough for
UI-layout-problems. a general overview of what that package does is
here:
https://github.com/SergeStinckwich/SciSmalltalk/wiki/RealInterval-Example-Algos
. the constraint solver is described somewhere in the middle of that page.
werner