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mwalkxmwalkx
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‎Work/bounce.py‎

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# bounce.py
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#
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# Exercise 1.5
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initHeight = 100
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returnBounce = 3/5
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bounces = 10
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for i in range(10):
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initHeight = round(initHeight * returnBounce, 4)
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print(i+1, initHeight)
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print("done")

‎Work/mortgage.py‎

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# mortgage.py
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#
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# Exercise 1.7
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principal = 500000.0
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rate = 0.05
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payment = 2684.11
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total_paid = 0.0
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month = 0
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extra_payment_start_month = 49
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extra_payment_end_month = extra_payment_start_month + 4*12
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extra_payment = 1000
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while principal > 0:
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month = month + 1
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if month >= extra_payment_start_month and month < extra_payment_end_month:
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extraPmt = extra_payment
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else:
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extraPmt = 0.0
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if principal * (1+rate/12) - payment - extraPmt < 0:
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if principal * (1+rate/12) - payment < 0:
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payment = principal * (1+rate/12)
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extraPmt = 0
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else: # ExtraPmt puts it over
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extraPmt = principal * (1+rate/12) - payment
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principal = principal * (1+rate/12) - payment - extraPmt
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total_paid = total_paid + payment + extraPmt
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print(f'Month: {month} Total Paid: ${total_paid:0.2f} Remaining: ${principal:0.2f}')
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print('Total Paid', total_paid)
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print('Total Months', month)

‎Work/pcost.py‎

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# pcost.py
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#
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# Exercise 1.27
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import sys
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def portfolio_cost(filename):
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import csv
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f = open(filename)
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rows = csv.reader(f)
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totalCost = 0
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header = next(rows)
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for row in rows:
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try:
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rowCost = int(row[1]) * float(row[2])
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totalCost = totalCost + rowCost
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except ValueError:
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print('Data error', row)
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return totalCost
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if len(sys.argv) == 2:
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filename = sys.argv[1]
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else:
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filename='Data/portfolio.csv'
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cost = portfolio_cost(filename)
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print('The total cost is: ', cost)

‎Work/sears.py‎

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# sears tower problem
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# tower 1450 ft
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# dollar bill 0.004
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towerHtFt = 1450.0
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towerHtIn = towerHtFt * 12
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print("Height in In", towerHtIn)
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billHt = .004
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pileHt = billHt
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billCount = 1
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day = 1
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while pileHt < towerHtIn :
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pileHt = pileHt * 2
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day = day + 1
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print(day, pileHt)
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print("bills required", pileHt/.004)
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print("total days", day)

‎sears.py‎

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# sears tower problem
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# tower 1450 ft
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# dollar bill 0.004
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towerHtFt = 1450.0
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towerHtIn = towerHtFt * 12
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print("Height in In", towerHtIn)
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billHt = .004
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pileHt = billHt
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billCount = 1
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day = 1
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while pileHt < towerHtIn :
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pileHt = pileHt * 2
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day = day + 1
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print(day, pileHt)
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print("bills required", pileHt/.004)
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print("total days", day)

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