Plotting the exponential function¶

This example demonstrates how to import a local module and how images are stacked when two plots are created in one code block. The variable N from the example ‘Local module’ (file is imported in the code below. Further, note that when there is only one code block in an example, the output appears before the code block.

  • Exponential function
  • Negative exponential function
# Code source: Óscar Nájera
# License: BSD 3 clause

import numpy as np
import matplotlib.pyplot as plt

# You can use modules local to the example being run, here we import
# N from local_module
from local_module import N  # = 100

def main():
    x = np.linspace(-1, 2, N)
    y = np.exp(x)

    plt.plot(x, y)
    plt.title('Exponential function')

    plt.plot(x, -np.exp(-x))
    plt.title('Negative exponential\nfunction')
    # To avoid matplotlib text output

if __name__ == '__main__':

Total running time of the script: ( 0 minutes 0.992 seconds)

Estimated memory usage: 8 MB

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