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Matplotlib drawing sin function image

2022-07-22 02:59:00 【Learning~~~】

import matplotlib.pyplot as plt
import numpy as np
#  The goal is ： draw sin Function image 

#  First step ： draw x Axis scale 
x = np.linspace(0, np.pi * 2, 300)  # linspace Arithmetic sequence function ,x Span from 0 To 2pi, Yes 300ge Points are connected into lines 
#  The second step ： draw y Axis 
y = np.sin(x)  # y yes x Of sin function 
#  The third step ： Add necessary instructions 
plt.xlabel("angle")  # x Axis is angular degree 
plt.ylabel("y_value")  # sin Value size 
plt.title("sin_image")
#  Generate the image 
plt.plot(x, y)
plt.show()