Skip to content

Clarify that a fixed parameter cannot make use of fallback #3769

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Oct 30, 2025
Merged

Clarify that a fixed parameter cannot make use of fallback #3769

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions chapters/equations.tex
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -782,6 +782,7 @@ \section{Initialization, initial equation, and initial algorithm}\label{initiali
\begin{nonnormative}
This is used in libraries to give rudimentary defaults so that users can quickly combine models and simulate without setting parameters; but still easily find the parameters that should be set properly.
The \lstinline!enable=false! case can be used to provide default values for parameters that are not used in the current configuration, while ensuring that they are explicitly given a value when used.
Note that the fallback value handling must not be interpreted as all variables having a value for the \lstinline!start!-attribute, so only an explicit \lstinline!start!-attribute can be used for a parameter binding.
\end{nonnormative}

All variables declared as \lstinline!parameter! having \lstinline!fixed = false! are treated as unknowns during the initialization phase, i.e., there must be additional equations for them -- and the \lstinline!start!-value can be used as a guess-value during initialization.
Expand Down