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The following functions use a variable that the solver modifies during a simulation.

Function Description Arguments Result
freq_dep(expression string)

Frequency dependent function which evaluates an expression using the _FREQ variable at solve time. The solver will set _FREQ during the simulation.

An expression surrounded by single or double quotes that uses the _FREQ variable.

Result of evaluating the expression using the current _FREQ variable value.

Example: freq_dep('5*_PI*_FREQ')

See “Frequency Dependent Materials” for more information. The expression syntax for the freq_dep function differs slightly from the expressions used in other areas.

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