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Free library providing different representations of linear, time invariant differential and difference equation systems, as well as typical operations on these system descriptions.

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Currently, M_LS2 widely uses the Dymola's inline commands which made it impossible to use the library within another tools. With #111 (planed for v2.5.0), all the functions (hopefully) have been...

discussion

Versions: LinearSystems2 2.3.4 build 1, Dymola 2018 the following function call fails: Modelica_LinearSystems2.ModelAnalysis.FullAnalysis("SingleCoach",simulationSetup=Modelica_LinearSystems2.Records.SimulationOptionsForLinearization(linearizeAtInitial=false, t_linearize=10)); fails, Dymola prompts: Not possible to open file "dslin.mat": No such file or directory and crashes,...

**Reported by @claytex on 2017-08-30T09:08:31+01:00** When the command below is run with the attached [Data.mat](https://github.com/modelica/Modelica_LinearSystems2/files/1262960/Data.zip) (will need to be renamed) file an error occurs: Modelica_LinearSystems2.StateSpace.Internal.invariantZerosWithRealMatrix(readMatrix("Data.mat","A",96,96), readMatrix("Data.mat","B",96,1), zeros(1,96), [0]); Modelica_LinearSystems2 (version...

**Reported by hubertus on 7 Jan 2015 16:42 UTC** This ticket is created from a customer report, without a model to verify. When a FullAnalysis is done, and numerical computaitons...

bug

Check, whether the function `M_LS2.Math.Matrices.rsf` could be replaced by `Modelica.Math.Matrices.realSchur`.

p::Math.Matrices

**Reported by dietmarw on 11 Sep 2015 07:51 UTC** The latest release v2.3.3 of `Modelica_LineraSystems2` contains a change described in the release notes as: > The following functions are not...

task

Function `M_LS2.Math.Matrices.LAPACK.dorgqr_x` shall be replaced with `Modelica.Math.Matrices.LAPACK.dormqr`. But https://github.com/modelica/ModelicaStandardLibrary/issues/4388 shall be resolved first since otherwise the new function call would look like: `Modelica.Math.Matrices.LAPACK.dormqr(Q, Q, tau, "L", "N")`, i.e. with doubled...

wontfix
p::Math.Matrices

**Reported by tobolar on 23 Jul 2012 12:17 UTC** Redesign icon Modelica_LinearSystems2.Controller.Icons.PartialBlockIcon since the idea with conditionally coloured background doesn't work properly. Optionally, use Modelica.Blocks.Icons.PartialBooleanBlock instead. ---- Migrated-From: https://trac.modelica.org/Modelica/ticket/783

task

The link to the 3-Clause BSD license https://modelica.org/licenses/modelica-3-clause-bsd is broken (after the webpage relaunch): https://github.com/modelica/Modelica_LinearSystems2/blob/8ce9333747d150a9366d069beb90ff274837b53c/Modelica_LinearSystems2/Controller/Internal/random.mo#L117 See also https://github.com/modelica/ModelicaStandardLibrary/issues/4214

M: Documentation

Taken from https://build.openmodelica.org/Documentation/FindFiles.log ``` Modelica_LinearSystems2.DiscreteStateSpace.'+'.html: Not found: Icons/Modelica_LinearSystems2.DiscreteStateSpace.' '.svg Modelica_LinearSystems2.DiscreteStateSpace.html: Not found: Icons/Modelica_LinearSystems2.DiscreteStateSpace.' '.svg Modelica_LinearSystems2.DiscreteTransferFunction.'+'.'dtf+dtf'.html: Not found: Icons/Modelica_LinearSystems2.DiscreteTransferFunction.' '.'dtf dtf'.svg Modelica_LinearSystems2.DiscreteTransferFunction.'+'.'dtf+dtf'.html: Not found: Modelica_LinearSystems2.DiscreteTransferFunction.' '.html Modelica_LinearSystems2.DiscreteTransferFunction.'+'.'dtf+r'.html: Not found: Icons/Modelica_LinearSystems2.DiscreteTransferFunction.' '.'dtf...