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Plotting a function

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Graphing a family of theoretical curves, often called plotting a function, is useful in three contexts:

To understand the properties of a function. After looking at the graph, go back and change the parameters to see how the graph changes. Or plot a family of curves, where one parameter varies from curve to curve.

To create graphs for teaching theory.

To understand what initial values would make sense when fitting a model to data with nonlinear regression.

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