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### Problem Description
The current terrain simulation systems do not provide a sufficiently realistic, scalable, and dynamic response to both player interactions and environmental phenomena in 2D op…
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Hi Patrick,
I noticed that steady state events occur much earlier if a state with a large value is constant. This behavior occurs irrespective of the `optx.norm` specified, even though I would assu…
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``` modelica
model TestModel1
Boolean b = sample(0, 0.1);
Real x1 = sin(time);
Real y1;
Real y2;
Real y3;
equation
when b then
y1 = x1;
end when;
when Clock(0.1) then…
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The following variables of the model `Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.Validation.ReliefFanGroup` fail the verification vs the reference transient generated by Dymola:
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We've had several requests in the past for constant species, and my general advice was if one wanted `A` to be constant don't write `A --> B` but write `A --> A + B` or `0 --> B` with rate `k*A`. The …
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This issue proposes to remove support for downstream-defined scalar types.
Many classes in Drake are templated on the type of numerical Scalar used for computation (e.g., `double`, `AutoDiffXd`, `s…
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@siyuanfeng-tri ran into a problem in a complicated Diagram where the behavior differed with caching enabled or disabled. I was able to trace this to the TAMSI results cache -- if I disabled caching f…
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**Submitting author:** @GJHSimmons (George Simmons)
**Repository:** https://github.com/casasglobal-org/psymple/
**Branch with paper.md** (empty if default branch): joss-review
**Version:** v0.3.4
**Ed…
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I'm trying to discretize the following Nerst-Plank system in a single spatial dimension; however, I've received the following error during the check_equations() call:
`ERROR: ArgumentError: Differe…
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(Copied from https://sourceforge.net/p/tulip-control/feature-requests/15/ with creation date 2012-05-31, by @murrayrm but assigned to no one.)
Take Jun's work in switching control systems and integra…