Note
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contourf(X, Y, Z)#
Plot filled contours.
Seecontourf.

importmatplotlib.pyplotaspltimportnumpyasnpplt.style.use('_mpl-gallery-nogrid')# make dataX,Y=np.meshgrid(np.linspace(-3,3,256),np.linspace(-3,3,256))Z=(1-X/2+X**5+Y**3)*np.exp(-X**2-Y**2)levels=np.linspace(Z.min(),Z.max(),7)# plotfig,ax=plt.subplots()ax.contourf(X,Y,Z,levels=levels)plt.show()