python-scipyHow can I use Python and SciPy to find the zeros of a function?
Using Python and SciPy to find the zeros of a function can be done with the scipy.optimize.fsolve
function. This function takes a function, and an initial guess, and returns the zero of the function.
For example, to find the zero of the function f(x) = x^2 + 2x - 3
, we can use the following code:
from scipy.optimize import fsolve
def f(x):
return x**2 + 2*x - 3
x_zero = fsolve(f, 0)
print(x_zero)
Output example
[-3.]
The code consists of the following parts:
- Importing the
scipy.optimize.fsolve
function from the SciPy library:from scipy.optimize import fsolve
- Defining the function to find the zero of:
def f(x): return x**2 + 2*x - 3
- Calling the
fsolve
function with the function and initial guess as arguments:x_zero = fsolve(f, 0)
- Printing the zero of the function:
print(x_zero)
Helpful links
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