This program computes roots of a quadratic equation when coefficients a, b and c are known.

To understand this example, you should have the knowledge of following Python programming topics:

The standard form of a quadratic equation is:

ax^{2}+ bx + c = 0, where a, b and c are real numbers and a ≠ 0

# Solve the quadratic equation ax**2 + bx + c = 0 # import complex math module import cmath a = 1 b = 5 c = 6 # To take coefficient input from the users # a = float(input('Enter a: ')) # b = float(input('Enter b: ')) # c = float(input('Enter c: ')) # 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))

**Output**

Enter a: 1 Enter b: 5 Enter c: 6 The solutions are (-3+0j) and (-2+0j)

We have imported the `cmath`

module to perform complex square root. First we calculate the discriminant and then find the two solutions of the quadratic equation.

You can change the value of `a`, `b` and `c` in the above program and test this program.

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