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additional exercises
Signed-off-by: Adam McNicol <[email protected]>
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‎1 - Variables/Additional Exercises/additional_exercise1.py

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#16-01-2012
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#additional exercise 1
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#sample solution
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print("Number Addition")
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print("This program asks for three numbers and then outputs the total")
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print()
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num1 = int(input("Please enter a number: "))
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num2 = int(input("Please enter a second number: "))
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num3 = int(input("Please enter a third number: "))
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print()
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ans = num1 + num2 + num3
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print("The total of {0} + {1} + {2} is {3}.".format(num1,num2,num3,ans))

‎1 - Variables/Additional Exercises/additional_exercise10.py

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#16-01-2012
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#additional exercise 10
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#sample solution
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import math
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print("Plane Distance")
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print("This program calculates how far north and east a plane has travelled")
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print("when given the number of degrees from north and the distance travelled in")
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print("a straight line.")
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print()
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degreesFromNorth = float(60)
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distanceInStraightLine = float(20)
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#north distance travelled
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#work out the sine angle
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sineDegrees = 90 - degreesFromNorth
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#convert to degrees to radians
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sineRadians = math.radians(sineDegrees)
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#work out sine
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sine = math.sin(sineRadians)
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#distance north travelled
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distanceNorth = round(sine * distanceInStraightLine,2)
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#
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#distance east travelled
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#convert to radians
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sineRadians = math.radians(degreesFromNorth)
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#work out sine
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sine = math.sin(sineRadians)
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#distance east travelled
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distanceEast = round(sine * distanceInStraightLine,2)
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print()
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print("The plane has travelled {0} north.".format(distanceNorth))
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print("The plane has travelled {0} east.".format(distanceEast))
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‎1 - Variables/Additional Exercises/additional_exercise11.py

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#16-01-2012
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#additional exercise 11
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#sample solution
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import math
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print("Ladder Height")
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print("This program calculates how far a ladder reaches up a wall")
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print("when given the number of degrees the ladder makes with the horizontal")
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print("and its distance from the wall.")
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print()
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degreesFromHorizontal = float(68)
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distanceFromWall = float(1.5)
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#degrees in radians
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radiansFromHorizontal = math.radians(degreesFromHorizontal)
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#tan
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tan = math.tan(radiansFromHorizontal)
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wallReach = round(tan * distanceFromWall,2)
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print("The ladder reaches {0} up the wall.".format(wallReach))
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‎1 - Variables/Additional Exercises/additional_exercise12.py

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#16-01-2012
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#additional exercise 12
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#sample solution
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import math
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print("Balloon Height")
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print("This program calculates how high a balloon has reached")
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print("when given the number of degrees the string makes with the horizontal")
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print("and the length of the string")
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print()
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degreesFromHorizontal = float(70)
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lengthOfString = float(120)
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#degrees in radians
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radiansFromHorizontal = math.radians(degreesFromHorizontal)
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#sine
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sine = math.sin(radiansFromHorizontal)
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balloonHeight = round(sine * lengthOfString,2)
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print("The balloon is {0} in the air.".format(balloonHeight))
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‎1 - Variables/Additional Exercises/additional_exercise13.py

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#16-01-2012
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#additional exercise 13
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#sample solution
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print("Quote Formatter")
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print("This program displays a given quote in different formats")
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print()
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quote = input("Please enter a quote to format: ")
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print(quote)
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print(quote.upper())
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print(quote.lower())
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print(quote.capitalize())
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print(quote.title())
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‎1 - Variables/Additional Exercises/additional_exercise14.py

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#16-01-2012
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#additional exercise 14
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#sample solution
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print("Quote Formatter")
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print("This program displays a given quote in different formats")
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print()
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quote = input("Please enter a quote to format: ")
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print(quote)
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print(quote.upper())
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print(quote.lower())
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print(quote.capitalize())
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print(quote.title())
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replaceWord = input("Which word in the quote would you like to replace: ")
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replaceWith = input("Please enter the word to replace it with: ")
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print("The original quote is: {0}".format(quote))
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print("The new quote is: {0}".format(quote.replace(replaceWord,replaceWith)))
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‎1 - Variables/Additional Exercises/additional_exercise15.py

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#16-01-2012
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#additional exercise 15
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#sample solution
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print("Quote Formatter")
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print("This program displays a given quote in different formats")
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print()
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quote = input("Please enter a quote to format: ")
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print(quote)
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print(quote.upper())
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print(quote.lower())
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print(quote.capitalize())
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print(quote.title())
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replaceWord = input("Which word in the quote would you like to replace: ")
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replaceWith = input("Please enter the word to replace it with: ")
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print("The original quote is: {0}".format(quote))
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print("The new quote is: {0}".format(quote.replace(replaceWord,replaceWith)))
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startLetter = int(input("Which letter would you like to start your quote from: "))
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stopLetter = int(input("Which letter would you like to finish your quote before: "))
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print("The original quote is: {0}".format(quote))
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print("The new quote is: {0}".format(quote[startLetter:stopLetter]))

‎1 - Variables/Additional Exercises/additional_exercise16.py

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#16-01-2012
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#additional exercise 11
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#sample solution
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import math
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print("Plane Distance")
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print("This program calculates how far north and east a plane has travelled")
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print("when given the number of degrees from north and the distance travelled in")
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print("a straight line.")
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print()
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degreesFromNorth = float(input("Please enter the number of degrees from north: ")
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distanceInStraightLine = float(input("Please enter the distance travelled in a straight line: "))
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#north distance travelled
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#work out the sine angle
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sineDegrees = 90 - degreesFromNorth
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#convert to degrees to radians
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sineRadians = math.radians(sineDegrees)
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#work out sine
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sine = math.sin(sineRadians)
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#distance north travelled
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distanceNorth = round(sine * distanceInStraightLine,2)
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#
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#distance east travelled
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#convert to radians
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sineRadians = math.radians(degreesFromNorth)
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#work out sine
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sine = math.sin(sineRadians)
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#distance east travelled
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distanceEast = round(sine * distanceInStraightLine,2)
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print()
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print("The plane has travelled {0} north.".format(distanceNorth))
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print("The plane has travelled {0} east.".format(distanceEast))
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‎1 - Variables/Additional Exercises/additional_exercise17.py

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#16-01-2012
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#additional exercise 12
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#sample solution
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import math
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print("Distance Climbed")
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print("This program calculates how much height is gained when travelling a")
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print("given distance and an incline angle")
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print()
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distanceTravelled = float(input("Please enter the distance travelled: "))
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inclineAngle = float(input("Please enter the incline angle: "))
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#convert degrees to radians
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inclineRadians = math.radians(inclineAngle)
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#get the sine
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sine = math.sin(inclineRadians)
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#calculate height
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height = round(distanceTravelled * sine,2)
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print()
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print("The distance travelled horizontally is {0}".format(height))
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‎1 - Variables/Additional Exercises/additional_exercise2.py

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#16-01-2012
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#additional exercise 2
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#sample solution
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print("Number Multiply and Divsion")
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print("This program asks for three numbers, adds the first two together")
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print("then divides the total by the third number before displaying the answer")
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print()
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num1 = int(input("Please enter a number: "))
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num2 = int(input("Please enter a second number: "))
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num3 = int(input("Please enter a third number: "))
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print()
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ans = (num1 + num2) / num3
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print("The total of ({0} + {1}) / {2} is {3}.".format(num1,num2,num3,ans))

‎1 - Variables/Additional Exercises/additional_exercise3.py

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#16-01-2012
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#additional exercise 3
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#sample solution
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print("Dividing")
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print("This program asks for two numbers and then divides them,")
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print("it then displays the number of times one goes into the other and")
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print("the remainder")
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print()
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num1 = int(input("Please enter a number: "))
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num2 = int(input("Please enter a second number: "))
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print()
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intans = num1 // num2
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remainder = num1 % num2
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print("{0}/{1} = {2} remainder {3}.".format(num1,num2,intans,remainder))

‎1 - Variables/Additional Exercises/additional_exercise4.py

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#16-01-2012
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#additional exercise 4
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#sample solution
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("Dividing - improved")
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print("This program asks for two numbers and then divides them,")
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print("it then displays the number of times one goes into the other")
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print()
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num1 = int(input("Please enter a number: "))
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num2 = int(input("Please enter a second number: "))
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print()
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#many ways to do this
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intans = num1 // num2
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#intans = int(num1/num2)
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#intans = int(round(num1/num2,0))
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remainder = num1 % num2
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print("{0}/{1} = {2}.".format(num1,num2,intans,remainder))

‎1 - Variables/Additional Exercises/additional_exercise5.py

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#16-01-2012
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#additional exercise 5
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#sample solution
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print("Volumes")
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print("This program asks for dimensions of both a fridge and a lift")
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print("then it works out how much volume remains inside the lift once the")
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print("fridge is inside.")
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print()
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liftW = float(input("Please enter the width of the lift: "))
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liftH = float(input("Please enter the height of the lift: "))
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liftD = float(input("Please enter the depth of the lift: "))
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print()
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fridgeW = float(input("please enter the width of the fridge: "))
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fridgeH = float(input("please enter the height of the fridge: "))
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fridgeD = float(input("please enter the depth of the fridge: "))
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print()
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liftV = liftW * liftH * liftD
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fridgeV = fridgeW * fridgeH * fridgeD
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liftSpace = liftV - fridgeV
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print("The lift's volume is {0}.".format(liftV))
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print("The fridge's volumne is {0}.".format(fridgeV))
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print("The lift has {0} of remaining space.".format(liftSpace))

‎1 - Variables/Additional Exercises/additional_exercise6.py

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#16-01-2012
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#additional exercise 6
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#sample solution
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print("Foreign Currency")
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print("This program asks for your holiday money (in pounds)")
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print("and the current exchange rate then displays the number of")
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print("euros you will recieve.")
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print()
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holidayMoney = int(input("Please enter amount of money you will take on holiday: "))
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exchangeRate = float(input("Please enter the current pound-euro exchange rate: "))
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print()
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#this is a div calculation
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euroHolidayMoney = holidayMoney//exchangeRate
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print("You will receive {0} Euros for your holiday.".format(euroHolidayMoney))

‎1 - Variables/Additional Exercises/additional_exercise7.py

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#16-01-2012
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#additional exercise 7
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#sample solution
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print("Foreign Currency")
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print("This program asks for your holiday money (in pounds)")
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print("and the current exchange rate then displays the number of")
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print("euros you will recieve.")
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print()
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holidayMoney = int(input("Please enter amount of money you will take on holiday: "))
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exchangeRate = float(input("Please enter the current pound-euro exchange rate: "))
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print()
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#this is a div calculation
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euroHolidayMoney = holidayMoney//exchangeRate
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print("You will receive {0} Euros for your holiday.".format(euroHolidayMoney))
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print("This will be made up of:")
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euro50s = int(euroHolidayMoney // 50)
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#this is a mod calculation
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remainingEuros = euroHolidayMoney % 50
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euro20s = int(remainingEuros // 20)
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remainingEuros = remainingEuros % 20
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euro10s = int(remainingEuros // 10)
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remainingEuros = remainingEuros % 10
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euro5s = int(remainingEuros // 5)
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remainingEuros = remainingEuros % 5
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print("{0} 50 Euro notes.".format(euro50s))
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print("{0} 20 Euro notes.".format(euro20s))
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print("{0} 10 Euro notes.".format(euro10s))
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print("{0} 5 Euro notes.".format(euro5s))
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print("and {0} in coins.".format(remainingEuros))

‎1 - Variables/Additional Exercises/additional_exercise8.py

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#16-01-2012
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#additional exercise 8
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#sample solution
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import math
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print("Circles")
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print("This program asks the radius of a circle and")
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print("calculates the circumference and area")
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print()
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radius = float(input("Please enter the radius of the circle: "))
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circumference = round(2 * math.pi * radius,2)
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#radius**2 means radius squared
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area = round(math.pi * radius**2,2)
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print()
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print("The circumference of this circle is {0}.".format(circumference))
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print("The area of this circle is {0}.".format(area))
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‎1 - Variables/Additional Exercises/additional_exercise9.py

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#16-01-2012
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#additional exercise 9
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#sample solution
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import math
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print("Circular Swimming Pool")
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print("This program calculates the volume of a circular swimming pool")
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print()
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diameter = float(input("Please enter the diameter of the pool: "))
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depth = float(input("Please enter the depth of the pool: "))
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radius = diameter/2
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#radius**2 means radius squared
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area = round(math.pi * radius**2,2)
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volume = round(area * depth,2)
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print()
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print("The volume of the swimming pool is {0}.".format(volume))
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