練習問題 7

matplot 練習問題 7

../../../_images/plot_exercice_7_1.png

Python ソースコード: plot_exercice_7.py

import numpy as np

import matplotlib.pyplot as plt



plt.figure(figsize=(8,5), dpi=80)

plt.subplot(111)



X = np.linspace(-np.pi, np.pi, 256,endpoint=True)

C = np.cos(X)

S = np.sin(X)



plt.plot(X, C, color="blue", linewidth=2.5, linestyle="-")

plt.plot(X, S, color="red", linewidth=2.5, linestyle="-")



ax = plt.gca()

ax.spines['right'].set_color('none')

ax.spines['top'].set_color('none')

ax.xaxis.set_ticks_position('bottom')

ax.spines['bottom'].set_position(('data',0))

ax.yaxis.set_ticks_position('left')

ax.spines['left'].set_position(('data',0))



plt.xlim(X.min() * 1.1, X.max() * 1.1)

plt.xticks([-np.pi, -np.pi/2, 0, np.pi/2, np.pi],

          [r'$-\pi$', r'$-\pi/2$', r'$0$', r'$+\pi/2$', r'$+\pi$'])



plt.ylim(C.min() * 1.1, C.max() * 1.1)

plt.yticks([-1, 0, +1],

          [r'$-1$', r'$0$', r'$+1$'])



plt.show()

Total running time of the example: 0.07 seconds ( 0 minutes 0.07 seconds)