python - 使用 python 查找 log(x)

Question

如何使用 python 解决这个问题 plot Log(x) where 0<=x<= 3*pi？

t = np.arange(0.01, 20.0, 0.01)
import numpy as np
import matplotlib.pyplot as plt

plt.subplot(222)
plt.semilogx(t, np.sin( 3*np.pi*t))

标签： pythonmathlogging

Answer 1

import numpy as np
import matplotlib.pyplot as plt

# use np.linspace to create x-points
t = np.linspace(0.01, 3*np.pi, 50)
plt.plot(t, np.log(t));