Quadratic Equation | Python Fiddle

import math
print("Bryce's Quadratic Equation Solver.")
print("This program uses the quadratic formula to find x, given the a, b, and c values (a(x^2) + bx + c = 0)")

def solve():
        global a
        global b
        global c
        global radical
        global isImaginary
        isImaginary = False
        a = int(input("In your equation, what is a? "))
        if (a == 0):
                print("Your equation is linear.  Please enter a new equation.")
                solve()
        b = int(input("What is b? "))
        c = int(input("What is c? "))
        radical = ((b ** 2) - (4 * a * c))
        if radical < 0:
                print("Just for your information, x will be imaginary.  Do you want to enter a (n)ew equation or (c)ontinue?")
                if input().lower() == "n":
                        solve()
                else:
                        isImaginary = True
                        radical = radical * -1
                        radical = math.sqrt(int(radical))
                        radical = "(i * " + str(radical) + ")"
                        solvePlus()
        else:
                solvePlus()
        
def solvePlus():
        global xPlus
        xPlus = (b * -1)
        if isImaginary:
                return str(xPlus) + " + " + str((radical))
        else:
                xPlus = xPlus + math.sqrt(int(radical))
                xPlus = xPlus / (2 * a)
                return xPlus
        solveMinus

def solveMinus():
        global xMinus
        xMinus = (b * -1)
        if isImaginary:
                return str(xPlus) + " - " + str((radical))
        else:
                xMinus = xMinus - math.sqrt(int(radical))
                xMinus = xMinus / (2 * a)
                return xMinus

solve()

#Debug code
print("radical == " + str(radical))
#delete after use

print("x is " + str(solvePlus()) +" and/or " + str(solveMinus()))

Browser Version Not Supported

Due to Python Fiddle's reliance on advanced JavaScript techniques, older browsers might have problems running it correctly. Please download the latest version of your favourite browser.
Chrome 10+ Firefox 4+ Safari 5+
IE 10+

Let me try anyway!

Python Fiddle

Python Cloud IDE