love的Python表示?
love的Python表示?
[解决办法]
Python 不知道,但是 c/c++ 非常经典:
zhu@ubuntu:~$ make lovemake: *** No rule to make target `love'. Stop.zhu@ubuntu:~$
[解决办法]
"""
'17*x^2 - 16*|x|*y + 17*y^2 = 225'
"""
import numpy as np
import matplotlib.pyplot as plt
X = np.arange(-5.0, 5.0, 0.1)
Y = np.arange(-5.0, 5.0, 0.1)
x, y = np.meshgrid(X, Y)
f = 17 * x ** 2 - 16 * np.abs(x) * y + 17 * y ** 2 - 225
fig = plt.figure()
cs = plt.contour(x, y, f, 0, colors = 'r')
plt.show()