Difference between revisions of "Quadratic Formula Assignment"

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'''Objective:'''  
 
'''Objective:'''  
 
* You will create a program that calculates the quadratic formula from given user input
 
* 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.
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* 054 Write a program accepting user input.
  
 
'''Resources:'''
 
'''Resources:'''
* [http://openbookproject.net/thinkcs/python/english2e/ch02.html How to Think Like a Computer Scientist: Chapter 2]
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* [[Media:PythonInputOutput.ppt]]
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* [[Media:PythonMathOperations.pptx]]
 
* [http://en.wikipedia.org/wiki/Quadratic_equation#Quadratic_formula Quadratic Formula]
 
* [http://en.wikipedia.org/wiki/Quadratic_equation#Quadratic_formula Quadratic Formula]
  
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# Create a program named '''quad.py'''
 
# Create a program named '''quad.py'''
 
# Prompt the user (ask the user for input) for variables a, b, and c
 
# Prompt the user (ask the user for input) for variables a, b, and c
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#* Don't forget to convert if necessary
 
# Calculate both real solutions using the quadratic formula (look it up on the internets)
 
# Calculate both real solutions using the quadratic formula (look it up on the internets)
 
#* There are two roots to calculate
 
#* There are two roots to calculate
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#* Watch out for order of operations!
 
#* Watch out for order of operations!
 
# Print the quadratic equation: a*x^2 + b*x + c = 0
 
# Print the quadratic equation: a*x^2 + b*x + c = 0
# Print the two real solutions of the quadratic formula
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#* Be sure to print a, b, c using the variables, so that the equation has the original inputs
 +
# Print the two solutions of the quadratic formula
  
# CHALLENGE: check if the solutions are real or imaginary
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CHALLENGE: check if the solutions are real or imaginary
# CHALLENGE2: print both solutions even if imaginary
 
  
 
'''Examples:'''
 
'''Examples:'''

Latest revision as of 09:35, 18 September 2017

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:

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 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

---

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