用Python画一颗特别的心送给她

import numpy as np
import matplotlib.pyplot as plt

x_coords = np.linspace(-100, 100, 500)
y_coords = np.linspace(-100, 100, 500)
points = []

for y in y_coords:
    for x in x_coords:
        if ((x * 0.03) ** 2 + (y * 0.03) ** 2 - 1) ** 3 - (x * 0.03) ** 2 * (y * 0.03) ** 3 <= 0:  # 引用公式
            points.append({"x": x, "y": y})

heart_x = list(map(lambda point: point["x"], points))
heart_y = list(map(lambda point: point["y"], points))

plt.scatter(heart_x, heart_y, s=10, alpha=0.5)
plt.scatter(heart_x, heart_y, s=10, alpha=0.5, c=range(len(heart_x)),cmap="spring")
plt.scatter(heart_x, heart_y, s=10, alpha=0.5, c=range(len(heart_x)),cmap="rainbow")
plt.show()

来自：http://www.taitaiblog.com/888.html