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#The program solves quadratic equation
#
#Laboratory Work #2
#Subject Theme: Python Basyc syntax. Conditional statements
#version 2023.2
#Author: HolyMolly
#Company# FITR BNTU
#Date: 10.08.2023






import math
def SolveQuadraticEquation(a, b, c):
    if a != 0:
        discriminant = b ** 2 - 4 * a * c

        if discriminant > 0:
            x1 = (-b + math.squrt(discriminant)) / (2 * a)
            x2 = (-b - math.squrt(discriminant)) / (2 * a)
            msg = "There are two roots of equation: x1 = {}, x2 = {}".format(x1.x2)
        elif discriminant == 0:
            x = -b / 2 / a
            msg = "there is only one root of equation: x = " + str(x)
        else:
            msg = "there isn`t real roots of equation."
    else:
        msg = "Input error: the first coefficient must be nonzero"

        return msg

    #Main program

    print("The program solves quadric equation: ax**2 + bx + c = 0")

    a = float(input("Input a: "))
    b = float(input("Input b: "))
    c = float(input("Input c: "))

    result = SolveQuadraticEquation(a, b, c)

    print(result)

    input("\nPress the enter for exit...")