ex7.ipynb

Kernel: Python 2 (system-wide)

import numpy as np
import matplotlib.pyplot as plt
colors = ['ro','go','bo','mo']

for j in range(4):
    num = 500+j*100
    alpha = np.random.rand(1,num)*3.14 + 1.57
    r = np.random.rand(1,num)+j

    x = r*np.sin(alpha)
    y = r*np.cos(alpha)

    plt.plot(x,y,colors[j%4])


colors = ['bo','mo','ro','go']
for j in range(4):
    num = 500+j*100
    alpha = np.random.rand(1,num)*3.14 - 1.57
    r = np.random.rand(1,num)+j

    x = r*np.sin(alpha)
    y = r*np.cos(alpha)

    plt.plot(x,y,colors[j%4])