python-scipyHow can I use Python and SciPy to find the root of a function?

Python and SciPy can be used to find the root of a function using the scipy.optimize.root function. This function uses a variety of algorithms to find the root of a given function. To find the root of a function, the function must be defined and passed to the scipy.optimize.root function.

For example, to find the root of the function f(x) = x^2 - 4, it can be coded as follows:

import scipy.optimize as opt

def f(x):
    return x**2 - 4

root = opt.root(f, [1])

print(root.x)

Output example

[2.]

1. import scipy.optimize as opt: imports the SciPy optimize module as opt.
2. def f(x):: defines the function to find the root of.
3. root = opt.root(f, [1]): uses the opt.root function to find the root of the function f(x) starting at x=1.
4. print(root.x): prints the root of the function.

Helpful links

• SciPy Optimize
• SciPy Optimize Root

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