2维C网格在Python中直观展示

 

Chebyshev grid

import numpy as np
import matplotlib.pyplot as plt
N = 30
M = 15
x = np.cos (np.pi * np.arange(N + 1) / N)
y = np.cos (np.pi * np.arange(M + 1) / M)
xx, yy = np.meshgrid(x, y)
plt.plot(xx, yy, "ko", markersize = 3)
plt.show()

代码来源：

interpolation - chebyshev nodes on a 2D grid - Mathematics Stack Exchange