New imports... switched order so that PyCharm will pick up with Python 3 import first

ProgrammingClassExamples/9a Plot Matplotlib numpy pyplot(y=sinx).py

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+#matplotlib, numpy, pyplot
+#Tony Crewe
+#Sep 2017 - updated Sep 2018
+
+import matplotlib.pyplot as plt
+import numpy as np
+
+
+fig=plt.figure()
+ax = fig.add_subplot(111)
+x = np.linspace(-np.pi*2, np.pi*2, 100)
+y= np.sin(x)
+ax.plot(x,y)
+
+ax.set_title('sin(x)')
+
+
+plt.show()
+
+
+
+