Difference between revisions of "Quadratic Formula Assignment"

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'''Objective:''' We will create a program that calculates the quadratic formula given user input
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'''Objective:'''  
 +
* You will create a program that calculates the quadratic formula from given user input
  
# Create a program, where you prompt the user (ask the user for input) for variables a, b, and c
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'''Competencies:'''
# Calculate both real solutions to the quadratic equation
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* 016 Demonstrate job-specific mathematics skills.
# Print the quadratic equation: a*x^2 + b*x + c
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* 053 Write a program that uses variables and constants.
# Print the two real solutions
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* 054 Write a program accepting user input.
  
 +
'''Resources:'''
 +
* [[Media:PythonInputOutput.ppt]]
 +
* [[Media:PythonMathOperations.pptx]]
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* [http://en.wikipedia.org/wiki/Quadratic_equation#Quadratic_formula Quadratic Formula]
  
HINT: exponentiation: x**y (x to the y power)
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'''Directions:'''
 +
# Create a program named '''quad.py'''
 +
# Prompt the user (ask the user for input) for variables a, b, and c
 +
#* Don't forget to convert if necessary
 +
# Calculate both real solutions using the quadratic formula (look it up on the internets)
 +
#* There are two roots to calculate
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#* You should have two variables x1 and x2 as the two solutions to the quadratic formula
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#* 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!
 +
# 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
 +
# Print the two solutions of the quadratic formula
  
 +
CHALLENGE: check if the solutions are real or imaginary
  
# CHALLENGE: check if the solutions are real or imaginary
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'''Examples:'''
# CHALLENGE2: print both solutions even if imaginary
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<pre>
 +
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
 +
 
 +
</pre>

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