python中pi_Python | 在图标签中添加Pi

水深无声 2023-03-05 10:58 22阅读 0赞

python中pi

**PI (π)** is very often used greek mathematical letters and has a higher repetition in circular geometry and probability. In this article, we are going to add **π** using a command in matplotlib.

**PI(π)**是非常常用的希腊数学字母，并且在圆形几何形状和概率上具有较高的重复率。 在本文中，我们将使用matplotlib中的命令添加**π** 。

plt.text(3, 0.4, r'$\pi=100$')
    #Adding π as text

![Python | Adding Pi in Plot Label (1)][Python _ Adding Pi in Plot Label _1]

plt.title('Errorbar with 'r'$\pi=100$')
    #Adding π in title of the figure

![Python | Adding Pi in Plot Label (2)][Python _ Adding Pi in Plot Label _2]

plt.xlabel('Time ('r'$\pi=100)$')
    #Adding π in title of the figure

![Python | Adding Pi in Plot Label (3)][Python _ Adding Pi in Plot Label _3]

plt.ylabel('Variation ('r'$\pi=100)$')
    #Adding π in title of the figure

![Python | Adding Pi in Plot Label (4)][Python _ Adding Pi in Plot Label _4]

## 在情节标签中添加omega的Python代码 **(**Python code for adding omega in plot label**)** ##

import numpy as np
    import matplotlib.pyplot as plt
    
    x = np.linspace(-3, 3)
    y = np.tanh(x) + 0.1 * np.cos(5 * x)
    
    # In text
    plt.figure()
    plt.plot(x, y, 'o', color='purple')
    plt.title('Errorbar')
    plt.text(2, 0.8, r'$\pi=100$', fontsize=14.0)
    plt.grid()
    plt.show()
    
    # In title
    plt.figure()
    plt.plot(x, y, 'o', color='purple')
    plt.title('Errorbar with 'r'$\pi=100$')
    plt.grid()
    plt.show()
    
    # In x-axis label
    plt.figure()
    plt.plot(x, y, 'o', color='purple')
    plt.xlabel('Time ('r'$\pi=100)$')
    plt.grid()
    plt.show()
    
    # In y-axis label
    plt.figure()
    plt.plot(x, y, 'o', color='purple')
    plt.ylabel('Variation ('r'$\pi=100)$')
    plt.grid()
    plt.show()

**Output:**

**输出：**

Output is as figure

> 翻译自: [https://www.includehelp.com/python/adding-pi-in-plot-label.aspx][https_www.includehelp.com_python_adding-pi-in-plot-label.aspx]

python中pi

[Python _ Adding Pi in Plot Label _1]: /images/20230208/8a655c2c721d4079b4c2e44eb3cf0aa5.png
[Python _ Adding Pi in Plot Label _2]: https://www.includehelp.com/python/images/adding-pi-in-plot-label-2.jpg
[Python _ Adding Pi in Plot Label _3]: https://www.includehelp.com/python/images/adding-pi-in-plot-label-3.jpg
[Python _ Adding Pi in Plot Label _4]: /images/20230208/6046284b60bf4441b478017f7863ccb7.png
[https_www.includehelp.com_python_adding-pi-in-plot-label.aspx]: https://www.includehelp.com/python/adding-pi-in-plot-label.aspx