Check for Algebraic loops in models
mathworks.earlydetection.algebraicLoop
Since R2026a
Dependencies: Simulink® Check™
Usage: General Modeling
Description
Use this to check identify and flags algebraic loops in Simulink models that involve direct feedthrough blocks, which create circular dependencies between block outputs and inputs within the same time step. It also detects artificial algebraic loops that occur when subsystems are configured as direct feedthrough, even if the internal path is not.
Recommended Actions and Results
Review the violations that are flagged by the check and the recommended action for fixing the issue. After applying the changes, save the model and rerun the check analysis.
You can use the Fix button to allow the Model Advisor to fix all flagged violations.
| Modeling Condition | Recommended Action |
|---|---|
| An algebraic loop is present in the model. | Use a Unit Delay block to break the algebraic loop. |
Capabilities and Limitations
Version History
Introduced in R2026a
See Also
Topics
- Modeling Considerations with Algebraic Loops
- Identify Algebraic Loops in Your Model
- Remove Algebraic Loops
- Check Your Model Using the Model Advisor
- Address Model Check Results
- Save and View Model Advisor Check Reports
- Improve Simulation Performance Using Performance Advisor
- Upgrade Models Using Upgrade Advisor
- Use Model Advisor Configuration Editor to Customize Model Advisor
- Exclude Blocks from Model Advisor Check Analysis
- Justify Model Advisor Violations from Check Analysis
- Check Model Compliance Using Edit-Time Checking
