Python

2018.4.6

code:plot001.py

import matplotlib.pyplot as plt

plt.plot( x, y )

plt.show()

code:plot002.py

import numpy as np

import matplotlib.pyplot as plt

x = np.random.randn(30)

y = np.sin(x) + np.random.randn(30)

plt.plot(x, y, "o")

plt.show()

code:ode010.py

import numpy as np

from scipy.integrate import odeint

import matplotlib.pyplot as plt

from mpl_toolkits.mplot3d import Axes3D

def func(v, t, p, r, b):

p = 10

r = 28

b = 8/3

t = np.arange(0, 100, 0.01)

v = odeint(func, v0, t, args=(p, r, b))

fig = plt.figure()

ax = fig.gca(projection='3d')

plt.show()

code:ode_011.py

import numpy as np

from scipy.integrate import odeint

import matplotlib.pyplot as plt

def func(x, t, a, b):

a = 1

b = 1

t = np.arange(0, 100, 0.01)

x = odeint(func, x0, t, args=(a,b) )

fig = plt.figure()

plt.xlim(-3, 3)

plt.ylim(-2, 5)

plt.show()

autograd