Algorithm
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Input coefficients: Accept the coefficients of the quadratic equation (a, b, c) from the user or any other source.
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Calculate discriminant: Calculate the discriminant using the formula .
Check discriminant:
- If the discriminant is positive, there are two real solutions.
- If the discriminant is zero, there is one real solution.
- If the discriminant is negative, there are no real solutions (complex solutions).
- Output the solutions: Display the solutions to the user.
Code Examples
#1 Code Example- Solve Quadratic Equation
Code -
Python Programming
# Solve the quadratic equation ax**2 + bx + c = 0
# import complex math module
import cmath
a = 1
b = 5
c = 6
# calculate the discriminant
d = (b**2) - (4*a*c)
# find two solutions
sol1 = (-b-cmath.sqrt(d))/(2*a)
sol2 = (-b+cmath.sqrt(d))/(2*a)
print('The solution are {0} and {1}'.format(sol1,sol2))
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Output
Enter a: 1
Enter b: 5
Enter c: 6
The solutions are (-3+0j) and (-2+0j)
Enter b: 5
Enter c: 6
The solutions are (-3+0j) and (-2+0j)
Demonstration
Python Programing Example to Solve Quadratic Equation-DevsEnv