関連ワード:  how to plot a function in python    how to plot a function in python using matplotlib    how to graph a function in python    how to draw a function in python    how to map a function in python    how to plot a piecewise function in python    how to plot a linear function in python    how to plot a 3d function in python    how to plot a sine function in python    how to plot a 2d function in python