Multisim Calculator Upd Site
Let’s break down how to use these features to compute, optimize, and verify your circuits without touching a physical calculator.
| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | | No simulation has been run or no plot is selected. | Run a Transient/AC sweep and ensure a trace is active. | | "Undefined variable" error | Typo in net name. | Check the Variables list for exact syntax (case-sensitive). | | RMS value seems wrong | You calculated RMS over the wrong time range. | Use rms(V(out), start_time, end_time) or zoom the plot. | | Filter function does nothing | Cutoff frequency is too high/low relative to simulation timestep. | Reduce simulation timestep (e.g., Max Timestep = 1e-6). | | Derivative looks noisy | Numeric differentiation amplifies noise. | Apply a lowpass filter before using derivative() . | multisim calculator
Your simulation output has high-frequency switching noise that obscures the low-frequency signal. You want to see the filtered version. Let’s break down how to use these features
This is the closest thing to magic. Instead of recalculating a circuit for 10 different resistor values, let Multisim do the brute force work. | | "Undefined variable" error | Typo in net name