Initial commit - Exercise 1

This commit is contained in:
Oystein Kristoffer Tveit 2020-08-26 14:47:36 +02:00
commit 484fd91f86
6 changed files with 227 additions and 0 deletions

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class recipe:
def __init__(self, ingredients, standardPortions):
self.ingredients = ingredients
self.standardPortions = standardPortions
def getIngredients(self, portions):
ratio = portions / self.standardPortions
for ingredient in self.ingredients:
print(f'{ingredient}: {self.ingredients[ingredient]*ratio}')
cookies = recipe(
ingredients={
'sukker(g)': 400,
'smør(g)': 320,
'sjokolade(g)': 500,
'egg': 2,
'hvetemel(g)': 460
},
standardPortions=48,
)
cookieNumber = int(input('Hvor mange cookies ønsker du å bake? '))
print('Antall cookies:', cookieNumber)
cookies.getIngredients(cookieNumber)

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COLUMN_PADDING = 10
class recipe:
def __init__(self, ingredients, standardPortions):
self.ingredients = ingredients
self.standardPortions = standardPortions
def toMap(self, portions):
ratio = portions / self.standardPortions
result = {'Antall cookies': portions}
for ingredient in self.ingredients:
result[ingredient] = self.ingredients[ingredient]*ratio
return result
cookies = recipe(
ingredients={
'sukker(g)': 400,
'smør(g)': 320,
'sjokolade(g)': 500,
'egg': 2,
'hvetemel(g)': 460
},
standardPortions=48,
)
def columnLength(columnElements):
elementLengths = list(map(lambda element: len(str(element)), columnElements))
return max(elementLengths) + COLUMN_PADDING
# lshift colum by column
# concatenate columns into rows
# foreach row print(row)
cookieQuestionList = [
'Hvor mange cookies vil du lage? ',
'Hvor mange cookies vil du lage nå? ',
'Hvor mange cookies vil du lage til slutt? '
]
cookieNumbers = list(map(lambda question: int(input(question)), cookieQuestionList))
# Make recipe maps from every cookie number
cookieList = list(map(lambda cNum: cookies.toMap(cNum), cookieNumbers))
# Define columns
columns = ['Antall cookies', 'sukker(g)', 'sjokolade(g)']
rawColumnData = {}
for column in columns:
rawColumnData[column] = [column]
rawColumnData[column].extend(list(map(lambda cookie: cookie[column], cookieList)))
columnLengths = dict(map(lambda column: (column[0], columnLength(column[1])), rawColumnData.items()))
formattedColumnData = {}
for column in columns:
formattedColumnData[column] = []
for entry in list(rawColumnData[column]):
remainingSpaces = columnLengths[column]
formattedColumnData[column].append(str(entry).ljust(remainingSpaces))
for row in range(0, len(columns) + 1):
print(formattedColumnData['Antall cookies'][row] + formattedColumnData['sukker(g)'][row])

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import math
# Bump the decimal point up by numberOfDecimal points,
# add 0.5 to make floor go from 0-1 to 0.5-1.5,
# then add back the decimal points.
def myRoundFunction(number, numberOfDecimals):
decimalFactor = 10 ** numberOfDecimals
return math.floor(number * decimalFactor + 0.5) / decimalFactor
def removeEmptyDecimals(number):
hasEmptyDecimals = (number == int(number))
return int(number) if hasEmptyDecimals else number
def inputTypeCheck(message, type, errorMessage):
while True:
inputValue = input(message)
try:
return type(inputValue)
except ValueError:
print(errorMessage)
number = inputTypeCheck(
message='Gi inn et desimaltall: ',
type=float,
errorMessage='Beklager, det du skrev inn er ikke et nummer. Prøv igjen\n'
)
numberOfDecimals = inputTypeCheck(
message='Antall desimaler i avrunding: ',
type=int,
errorMessage='Beklager, det du skrev inn er ikke et heltall. Prøv igjen\n'
)
roundedNumber = removeEmptyDecimals(myRoundFunction(number,numberOfDecimals))
print(f'Avrundet til {numberOfDecimals} desimal: {roundedNumber}')

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import math
def inputTypeCheck(message, type, errorMessage):
while True:
inputValue = input(message)
try:
return type(inputValue)
except ValueError:
print(errorMessage)
def removeEmptyDecimals(number):
hasEmptyDecimals = (number == int(number))
return int(number) if hasEmptyDecimals else number
def myRoundFunction(integerPart,decimalPart,amountOfDecimals):
decimalOffset = len(str(integerPart))
roundOffset = decimalOffset + amountOfDecimals
numberString = f'{integerPart}{decimalPart}'
lastDigit = int(numberString[roundOffset-1])
firstEvalDigit = int(numberString[roundOffset])
addPointAtOffset = lambda num,off: float(str(num)[:off] + '.' + str(num)[off:])
if (firstEvalDigit < 5):
return addPointAtOffset(numberString[:roundOffset], decimalOffset)
elif (firstEvalDigit == 5):
try:
hasDigitsBehind5 = (int(numberString[roundOffset+1:]) > 0)
except ValueError:
hasDigitsBehind5 = False
# This is the special case where round() rounds 2.5 down to 2.
# It is only valid when there's no digits behind the eval digit
# and when the base digit is even.
specialCase = ((not hasDigitsBehind5) and (lastDigit % 2 == 0))
roundedNumber = int(numberString[:roundOffset]) + 1 - specialCase
return addPointAtOffset(roundedNumber, decimalOffset)
else:
return addPointAtOffset(int(numberString[:roundOffset]) + 1, decimalOffset)
def main():
integerPart = inputTypeCheck(
message='Oppgi heltallsdelen av tallet (det foran punktum): ',
type=int,
errorMessage='Beklager, det du skrev inn er ikke et heltall. Prøv igjen\n'
)
decimalPart = inputTypeCheck(
message='Oppgi desimaldelen av tallet (det bak punktum): ',
type=int,
errorMessage='Beklager, dette er ikke et tall, eller inneholder et desimalpunkt. Prøv igjen\n'
)
amountOfDecimals = inputTypeCheck(
message='Oppgi ønsket antall desimaler i avrunding: ',
type=int,
errorMessage='Beklager, det du skrev inn er ikke et heltall. Prøv igjen\n'
)
roundedNumber = removeEmptyDecimals(myRoundFunction(integerPart, decimalPart, amountOfDecimals))
print(f'{integerPart}.{decimalPart} avrundet til {amountOfDecimals} desimaler blir {roundedNumber}')
def test():
print(myRoundFunction(2, 5, 0))
print(myRoundFunction(2, 15, 1))
print(myRoundFunction(2, 500000000000000000001, 0))
main()

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def getName():
while True:
name = input('Jeg heter: ')
if (' ' in name):
return name.split(' ')
print('Putt et mellomrom mellom fornavn og etternavn')
capitalize = lambda name: name.capitalize()
names = list(map(capitalize, getName()))
firstNames = ' '.join(names[:-1])
lastName=names[-1]
print(f'The name is {lastName}, {firstNames} {lastName}')

17
Exercise 1/9.py Normal file
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from math import sqrt
class Tetraeder:
def __init__(self, length):
self.length = length
self.a = 3/sqrt(6) * length
getArea = lambda self: sqrt(3) * (self.a**2)
getVolume = lambda self: sqrt(2) * (self.a**3) / 12
figure1 = Tetraeder(3)
print(f'Et tetraeder med høyde {figure1.length} har areal {figure1.getArea()}')
print(f'Et tetraeder med høyde {figure1.length} har volum {figure1.getVolume()}')
print()
figure2 = Tetraeder(float(input('Skriv inn en høyde: ')))
print(f'Et tetraeder med høyde {figure1.length} har volum {figure2.getVolume()} og areal {figure2.getArea()}')