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# Annotation Basic

    import numpy as np
    import matplotlib.pyplot as plt

    fig = plt.figure()
    ax = fig.add_subplot(111)

    t = np.arange(0.0, 5.0, 0.01)
    s = np.cos(2*np.pi*t)
    line, = ax.plot(t, s, lw=2)

    ax.annotate('local max', xy=(2, 1), xytext=(3, 1.5),
                arrowprops=dict(facecolor='black', shrink=0.05),
                )

    ax.set_ylim(-2,2)
    plt.show()

Total running time of the script: ( 0 minutes 0.117 seconds)

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