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unbound variable freq

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I want to plot the inductance through formula L1=(imag(Z(1,1))/(2*pi*freq)), but the system tells me that the freq is unbound variable? What can I do?

  • There's no keyword freq in the calculator to represent the swept frequency. Instead, you would use the xval() function around an expression to retrieve a signal from the analysis you've run - this is a generic function to return a waveform representing the x-axis of that waveform. So you'd use:

    imag(zpm('sp 1 1))/2/pi/xval(zpm('sp 1 1))

    Andrew

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