Learn about the Program to Find Roots of Quadratic Equation using Function in Python in the below code example. Also, refer to the comments in the code snippet to get a detailed view about what’s actually happening.
Contents
Program to Find Roots of Quadratic Equation using Function in Python
The quadratic equation has the conventional form ax²+ bx + c = 0, where a, b, and c are real and a!=0, and x is an unknown variable.
The discriminant is calculated in the below program using the below formula :
discriminant(d) = b² – 4*a*c
Program:
# Python program to solve quadratic equation
#importing math module
import math
def edu_roots(a, b, c):
dis = (b**2) - (4*a*c)
# check condition for discriminant
if(dis > 0):
root1 = (-b + math.sqrt(dis) / (2 * a))
root2 = (-b - math.sqrt(dis) / (2 * a))
print("Two distinct real roots are %.2f and %.2f" %(root1, root2))
elif(dis == 0):
root1 = root2 = -b / (2 * a)
print("Two equal and real roots are %.2f and %.2f" %(root1, root2))
elif(dis < 0):
root1 = root2 = -b / (2 * a)
imaginary = math.sqrt(-dis) / (2 * a)
print("Two distinct complex roots are %.2f+%.2f and %.2f-%.2f"
%(root1, imaginary, root2, imaginary))
# inputs from user
a = int(input('Enter the value of a: '))
b = int(input('Enter the value of b: '))
c = int(input('Enter the value of c: '))
# function call
edu_roots(a, b, c)Output:
Enter the value of a: 1 Enter the value of b: 5 Enter the value of c: 4 Two distinct real roots are -3.50 and -6.50
Hope above code works for you and Refer the below Related Codes to gain more insights. Happy coding and come back again.
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