python-matplotlibHow to plot a function

In order to plot a function (defined with def) we can easily use Numpy:

import numpy as np
import matplotlib.pyplot as plt

def f(x):
  return 2*x*x - 3*x + 7

x = np.linspace(-10, 10, 30)

plt.plot(x, f(x))

plt.show()ctrl + cgithub

`import matplotlib.pyplot as plt` loads Matplotlib module to use plotting capabilities	`import numpy as np` load Numpy module for Python
`def f(x)` defined function we need to plot	`np.linspace` generate random values based on specified range and count
`.plot(` plot specified data	`x, f(x)` use `x` array for `X-axis` and `f(x)` values (will be automatically calculated by `Numpy`) for `Y-axis`
`.show()` render chart in a separate window

How to plot a function, python matplotlib

Usage example

import numpy as np
import matplotlib.pyplot as plt

def f(x):
  return 2*x*x - 3*x + 7

x = np.linspace(-10, 10, 30)

plt.plot(x, f(x))

plt.show()

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