Quadratic Formula Assignment

Objective:

• You will create a program that calculates the quadratic formula from given user input

Competencies:

• 016 Demonstrate job-specific mathematics skills.
• 053 Write a program that uses variables and constants.
• 054 Write a program accepting user input.

Resources:

• Media:PythonInputOutput.ppt
• How to Think Like a Computer Scientist: Chapter 2
• Quadratic Formula

Directions:

1. Create a program named quad.py
2. Prompt the user (ask the user for input) for variables a, b, and c
   • Don't forget to convert if necessary
3. Calculate both real solutions using the quadratic formula (look it up on the internets)
   • There are two roots to calculate
   • You should have two variables x1 and x2 as the two solutions to the quadratic formula
   • Exponentiation: x**y (x to the y power)
   • Square root is the same as taking something to the power 0.5
   • Remember to use parentheses
   • Watch out for order of operations!
4. Print the quadratic equation: a*x^2 + b*x + c = 0
   • Be sure to print a, b, c using the variables, so that the equation has the original inputs
5. Print the two real solutions of the quadratic formula

CHALLENGE: check if the solutions are real or imaginary

Examples:

Please enter a: 1
Please enter b: 3
Please enter c: 2

Your equation is 1*x^2+3*x+2=0
The roots are:
-1.0
-2.0

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Please enter a: 2
Please enter b: 3
Please enter c: 1

Your equation is 2*x^2+3*x+1=0
The roots are:
-0.5
-1.0