Sine wave block produces a triangular wave when the "pi" value is in the frequency.

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Answers (1)

Neelanshu
Neelanshu on 2 Jan 2024
Hi Stephen,
I understand from your query that you need help understanding why the sine wave output appears as a triangular wave when the frequency is set to 100*pi.
I assume you haven't altered any of the solver settings. The issue may be due to a larger time step, which results in the output of the "sine" block not being captured accurately. To rectify this:
  1. Navigate to the "Configuration Parameters" dialog. This can usually be done by clicking on a gear icon.
  2. In the "Configuration Parameters" dialog, locate the "Solver" tab.
  3. Within the "Solver" tab, find the "MaxStepSize" setting.
  4. Change the value of "MaxStepSize" to a smaller number, such as 1e-6.
  5. Apply the changes by clicking "OK" or "Apply" in the dialog.
While the simulation may take longer, this adjustment will provide more data points and, consequently, a smoother curve. Here is the obtained output:
Figure 1 Output of Sine Wave atMaxStepSize” 1e-6
Kindly refer to the following documentation to learn more about solver selection:
Hope this helps,
Regards,
Neelanshu

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