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| Hi everybody, The following minimal example does compile without any problems in WSM 4.3 and 5.1. But it will cause an error in WSM 12.0 all of a sudden: model UnitErrorModel MyComponent c( hasUnit = "myUnit" ); block... |
| Hi everybody, coming from [System Dynamics][1] I am wondering how stopping a simulation, changing variables (including state reinitialization), and continueing the simulation can be achieved from the outside (e.g. using Mathematica's integration... |
| *I have posted a similar question on StackOverflow ([here][1]), as it seems -- with the alleged exception of SimulationX -- to appear in System Modeler as well as in OpenModelica and Dymola. I believe that the issue may be of interest for this... |
| Hi everybody, I am creating a library for *System Dynamics* modeling which unlike the existing free library by Cellier is making use of acausal connectors. For "Flow" - Elements I have a generic flow class that defines the interfaces: ... |
| Inspired by [this answer][1] to my question on stack overflow I was curious about overloading the class **operator** to have an **operator record**. From the [Modelica specs for Version 3.2.2][2] (Chapter 14) I take it that *operator records* are... |
| Unit checking (or dimensional analysis) is an important means of model verification: [Units of Measurement in a Modelica Compiler][1] **Question 1: Is unit checking implemented in the current version of Wolfram System Modeler?** (If not, what... |
| I recently became aware of this [paper][1] by Francesco Casella regarding *"Simulation of Large-Scale Models in Modelica: State of the Art and Future Perspectives"* where the lack of *Sparse DAE Solvers* to work with large Modelica models is... |
| Hi, With great excitement I read the announcement given by John Fultz that the CDF Player for iOS is about to be released in a Beta-version [here][1]. This was urgently anticipated as interactive content (CDF) makes the most sense on those... |
| Dirk Zimmer has nicely shown the problems of MODELICA to handle variable-structure systems: [Equation-based Modeling of Variable-Structure Systems][1] Coming from the social sciences where generating new entities at runtime is very often done... |