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Photo Voltaic I-V Curve Calculation Plot?

As we know, a photovoltaic cell can be equivalently shown as a current source in parallel with a diode and then include Rs(series resistance) and shunt resistance Rsh. We have a standard equation for calculation output current I for such current.

My question is how do I get the IV curve, since I is on both side of the equation? How do I plot IV curve?