numpy / matplotlib

numpy

array

import numpy as np

np.array([[1, 2, 3],
                [1, 2, 3],
                [1, 2, 3],])

type(np.array([[1, 2, 3],
                [1, 2, 3],
                [1, 2, 3],])	# <class 'numpy.ndarray'>

np.array([[1, 2, 3],
                [1, 2, 3],
                [1, 2, 3],])/10

linspace

np.linspace(0, 1, 3) # [0.  0.5 1. ]
len(np.linspace(0, 1, 3)) # 3

arange

np.arange(0, 10)	# [0 1 2 3 4 5 6 7 8 9]

random

np.random.rand(4)	# [0.00081546 0.02868813 0.24349998 0.64126866]

matplotlib

plot

 

axis

import matplotlib.pyplot as plt

plt.axis([0, 20, 2, 10])	# [x start, x end, y start, y end]
plt.axis("equal")		# https://blog.naver.com/heygun/221514736114

https://blog.naver.com/heygun/221514736114