Find the Roots of a Quadratic Equation

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IT401-Project-2020-2021-T2-Phase1-V211.docx

Project Report Phase 1

Deadline:Thursday 25/02/2021 @ 23:59

[Total Mark for this project is 5]

Business Computer Languages

IT401

https://www.seu.edu.sa/sites/ar/SitePages/images/logo.png

College of Computing and Informatics

pg. 4

I. Project Description:

This project is about Find the Roots of a Quadratic Equation.

The standard form of a quadratic equation is:

ax2 + bx + c = 0, where

a, b and c are real numbers and

a != 0

The term b2-4ac is known as the discriminant of a quadratic equation. It tells the nature of the roots.

1. If the discriminant is greater than 0, the roots are real and different.

Formula to compute the roots of a quadratic equation

2. If the discriminant is equal to 0, the roots are real and equal.

Formula to compute the roots of a quadratic equation

3. If the discriminant is less than 0, the equation has no real root.

II. Project Phase 1 questions:

In the first phase of this project, you are requested to

1. Write an algorithm for a quadratic equation solver.

2. Implement the class Main with the main method. Declare the variables and compute the discriminant.

3. After computing the discriminant value, insert the following code after completing the missing instructions. Don’t forget to add comments.

if (discriminant > 0) {

}

else if (discriminant == 0) {

}

else {

}

Example:

If a, b, and c are set to 3, 1 and 2 respectively, the equation has no real root.

III. Marking Criteria

Criteria

Marks

The program is bugs-free

/5

The source code is well documented (commented) and program uses standard Java naming conventions

/5

Question 1

/10

Question 2

/10

Question 3

/10

Output screenshots provided in the report

/10

Total

/50

Final Grade

/5

Answer

1. Brief description

Provide a brief description of your program in this section.

2. Algorithm

Provide the algorithm for the quadratic equation solver

3. Program code

Put the code of your program in this section. Do not forget to document (comment) your code.

4. Screenshots

Put the different screenshots with a brief description in this section.

5. Difficulties Faced

Provide a brief description of difficulties and challenges faced during this phase of the project.