ModelicaStandardLibrary
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modelica
Free (standard conforming) library to model mechanical (1D/3D), electrical (analog, digital, machines), magnetic, thermal, fluid, control systems and hierarchical state machines. Also numerical functi...
Modelica.Mechanics.MultiBody.Joints.SphericalSpherical and Modelica.Mechanics.MultiBody.Joints.UniversalSpherical contain formulas of the kind: ``` if kinematicConstraint then rRod_0 = transpose(frame_b.R.T)*(frame_b.R.T*frame_b.r_0) - transpose( frame_a.R.T)*(frame_a.R.T*frame_a.r_0); else rRod_0 = frame_b.r_0 - frame_a.r_0; end if; ``` To me this...
The inheritance of classes is not done consequently. See for example #3737 or https://github.com/modelica/ModelicaStandardLibrary/issues/2171#issuecomment-280661422
@finback-at Can you please create a pull request to add a new test model comparing mixtureViscosityChung and dynamicViscosity for CombustionAir to ModelicaTest.Media.TestOnly. Thanks a lot!
There are no test or example models for the relative sensors Modelica.Thermal.FluidHeatFlow.Sensors.RelPressureSensor and Modelica.Thermal.FluidHeatFlow.Sensors.RelTemperatureSensor in the MSL, which is one reason for late and accidental detection of the regression error...
Examples in Modelica.Fluid.Examples.TraceSubstances use 300 ppm as concentration of CO2 for fresh air. This value was good around 1920 but is now totally obsolete, recent measurements at Mauna Kea hover...
There are no descriptions for public variables of Modelica.Electrical.Analog.Basic.OpAmpDetailed (with exception of `x`). 
There are no test or example models for the relative sensors Modelica.Thermal.HeatTransfer.Sensors.RelTemperatureSensor, Modelica.Thermal.HeatTransfer.Sensors.HeatFlowSensor and Modelica.Thermal.HeatTransfer.Sensors.ConditionalFixedHeatFlowSensor in the MSL.
The csv file `ModelicaTest/Fluid/Dissipation/Verifications/HeatTransfer/HeatExchanger/kc_roundTube/kc_roundTube.csv` in the reference result repository contains a `nan` in the first row of data. Is this expected? What should it be interpreted as?
Set LinePattern.None for shapes with gradients. See: https://github.com/modelica/ModelicaSpecification/pull/3789
The change (apart from nicer formatting) is that the cylinder going into the wheel is ends 1mm to the left. Previously it looked as if it was in front of...