Python Program to Solve Quadratic Equation
Solve Quadratic Equation |
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CODE | OUTPUT |
The standard form of a quadratic equation is:
ax2 + 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)) |
Enter a: 1
Enter b: 5 Enter c: 6 The solutions are (-3+0j) and (-2+0j)
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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. |