HW computer science

ECE-206 HW-08A Page 1 of 1

HW-08A: C++ Quadratic Equation

Write a C++ program to find the roots of a quadratic equation of the form Ax2 + Bx + C = 0.

Prompt the user to enter the coefficients A, B, and C. The program can only handle real roots;

thus, the program must reject the coefficients if the discriminant (B2 – 4AC) < 0. In addition, the

program must treat the quadratic equation as a special case, a linear equation, when A is zero.

Thus, no division by zero will occur in your program.

Output Format

Allocate at least 15 spaces for each of the root output and output the roots in the following

format:

1. Right justified, four decimal places accuracy, fixed point format

2. Right justified, two decimal places accuracy, floating point (scientific) format

3. Left justified, four decimal places accuracy, fixed point format

4. Left justified, two decimal places accuracy, floating point (scientific) format

Run output example

If the program run with A = 2, B = -9, and C = 5, the run output will look like

The roots of 2 x*x - 9*x + 5 = 0 are

x1 x2

123456789012345678901234567890 (digit position)

3.8508 0.6492

3.85e+000 6.49e-001

3.8508 0.6492

3.85e+000 6.49e-001

Submit a copy of the working and well-documented program, and run output.

Note: use sqrt() function in cmath library to do the square root.