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```
The Python Multibody (Dynamics) software PyMbs uses Sympy for symbolic preprocessing of equations. At some point I received an error message "Object has no attribute 'is_comparable'.", where the o…
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Below is some code taken from the example I'm working with, simplified and genericised for the sake of this question.
From what I can tell, there is no difference between the two code snippets. That …
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As many users have mentioned, the equation interpreters do more than just math equations.
So lets change `math` to `stem`. That should future proof (and not bias) the interpreter implementations.
Re…
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I find this set of rules:
```
syntax ValueProp ::= Int
| #ptr(SymLoc, Type)
| #struct(List, FieldInfo)
| #union(List, Fi…
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Hi Michael,
during the Annex60 meeting we discussed the possibility for using records to insert the parameters of a pump model. This way no documentation is 'lost' when extending a model. Also it mak…
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We have two objects, `Simulator` and `Simulation`, which have very similar names and very different purposes. I think that will be terribly confusing for users. In addition, we have a `Calculation` cl…
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A few more thoughts from @markeschaffer (moved from issue #11)...
The structure of the model is in terms of proportions of adults rather than proportions of children, which makes sense. But it make…
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The Pontryagin Maximum Principle has been used to determine the optimal transfers between arbitrary coaxial ellipses. The results are presented in graphical form. An algebraic technique was employed t…
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```
It seems to me that Integral(x, (x, 1, y)).atoms(Symbol) should return y
since the x values are dummy variables in this context.
An patch for discussion is committed to branch 1766 as commit 1823…
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We need to discuss the scope for the applicable geometries to be included in the IFC4 Reference View.
- minimum scope: only geometry that is of type "Tessellation"
- maximum scope: all geometry that d…