如何使用 Python Matplotlib 绘制简单的正弦曲线
最编程
2024-04-22 08:33:31
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# import matplotlib pyplot module.
from matplotlib import pyplot as plt
# import numpy module.
import numpy as np
# import python math module.
import math
# call the math.pi method to convert radians to angles.
# get the x-axis value.
x = np.arange(0, math.pi*2, 0.05)
# calculate the y-axis value use the np.sin() method.
y = np.sin(x)
# plot the sine curve.
plt.plot(x,y)
# draw the x-axis and y-axis label.
plt.xlabel("angle")
plt.ylabel("sine")
# draw the image title.
plt.title('sine wave')
# call the show() method to display the image.
plt.show()