Create graph

graph

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+import numpy as np
+
+import matplotlib.pyplot as plot
+
+
+
+# Get x values of the cosine wave
+
+time        = np.arange(0, 20, 0.2);
+
+
+
+# Amplitude of the cosine wave is cosine of a variable like time
+
+amplitude   = np.cos(time)
+
+
+
+# Plot a cosine wave using time and amplitude obtained for the cosine wave
+
+plot.plot(time, amplitude)
+
+
+
+# Give a title for the cosine wave plot
+
+plot.title('Cosine wave')
+
+
+
+# Give x axis label for the cosine wave plot
+
+plot.xlabel('Time')
+
+
+
+# Give y axis label for the cosine wave plot
+
+plot.ylabel('Amplitude = cosine(time)')
+
+
+
+# Draw the grid for the graph
+
+plot.grid(True, which='both')
+
+
+
+plot.axhline(y=0, color='b')
+
+
+
+# Display the cosine wave plot
+
+plot.show()