The MATLAB® Function Feature Node
MATLAB® functions are global in scope, and you can use them in a model to define model settings such as
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Parameters
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Geometry settings
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Mesh settings
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Material properties
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Physics settings (domain conditions, boundary conditions, and so on)
Material properties and physics settings are evaluated while the model is solved whereas the features can be used while the model is constructed.
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Defining a MATLAB® Function in the COMSOL® Model
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Setting the Function Directory Path in MATLAB®
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Adding a MATLAB® Function with the COMSOL® API Syntax
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Function Input/Output Considerations
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Updating Functions
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Defining Function Derivatives