How to plot convergence in Python using Matplotlib?

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To plot convergence using Matplotlib in Python, you can follow these steps:

1. Import the necessary libraries: Matplotlib and NumPy.

import matplotlib.pyplot as plt
import numpy as np

1. Create a NumPy array to store the data that is to be plotted.

data = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])

1. Create a plot using the plot() function of Matplotlib.

plt.plot(data)

1. Label the x-axis using the xlabel() function.

plt.xlabel('Iterations')

1. Label the y-axis using the ylabel() function.

plt.ylabel('Error')

1. Give a title to the plot using the title() function.

plt.title('Convergence Plot')

1. Display the plot using the show() function.

plt.show()

The complete code would look like this:

import matplotlib.pyplot as plt
import numpy as np

data = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])

plt.plot(data)
plt.xlabel('Iterations')
plt.ylabel('Error')
plt.title('Convergence Plot')
plt.show()

This will create a simple line plot with the x-axis labeled as "Iterations", the y-axis labeled as "Error", and the title of the plot as "Convergence Plot".