polyval() is a function commonly found in mathematical libraries like NumPy in Python. It is used to evaluate a polynomial at a specific value. In this example, np.polyval() takes the coefficients of the polynomial and the value at which you want to evaluate it and returns the result.
import numpy as np # Define the coefficients of the polynomial, e.g., for 2x^2 + 3x + 1 coefficients = [2, 3, 1] # Value at which to evaluate the polynomial, e.g., x = 4 x = 4 # Use polyval to evaluate the polynomial at x result = np.polyval(coefficients, x) print(result) # This will output the result of 2x^2 + 3x + 1 at x=4