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Maximum number of bracketing iterations

Maximum number of iterations performed when locating zero crossing

Since R2022a

Model Configuration Pane: Solver


When a discontinuity, or zero crossing, is detected in a simulation where you have zero-crossing detection enabled, the solver tries to determine the time at which the zero crossing occurred through an iterative process. This parameter specifies the maximum number of iterations the solver performs to locate the time of the zero-crossing.

You can adjust the bounded computational cost of the fixed-step zero-crossing algorithm using this parameter and the Maximum number of zero-crossings per step parameter.


To enable this parameter:


10 (default) | positive scalar integer

Allowing the solver to perform more iterations to locate each zero crossing can produce a more accurate result but is more computationally intensive.

Recommended Settings

The table summarizes recommended values for this parameter based on considerations related to code generation.

DebuggingNo impact
TraceabilityNo impact
EfficiencyNo impact
Safety precautionNo impact

Programmatic Use

Parameter: MaxZcBracketingIterations
Type: numeric
Value: positive scalar integer
Default: 10

Version History

Introduced in R2022a