2020-08-26 14:47:36 +02:00
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import math
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2020-08-31 23:16:07 +02:00
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from common import inputTypeCheck
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2020-08-26 14:47:36 +02:00
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# Bump the decimal point up by numberOfDecimal points,
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# add 0.5 to make floor go from 0-1 to 0.5-1.5,
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# then add back the decimal points.
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def myRoundFunction(number, numberOfDecimals):
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decimalFactor = 10 ** numberOfDecimals
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return math.floor(number * decimalFactor + 0.5) / decimalFactor
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def removeEmptyDecimals(number):
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hasEmptyDecimals = (number == int(number))
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return int(number) if hasEmptyDecimals else number
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number = inputTypeCheck(
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message='Gi inn et desimaltall: ',
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type=float,
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errorMessage='Beklager, det du skrev inn er ikke et nummer. Prøv igjen\n'
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)
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numberOfDecimals = inputTypeCheck(
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message='Antall desimaler i avrunding: ',
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type=int,
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errorMessage='Beklager, det du skrev inn er ikke et heltall. Prøv igjen\n'
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)
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roundedNumber = removeEmptyDecimals(myRoundFunction(number,numberOfDecimals))
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print(f'Avrundet til {numberOfDecimals} desimal: {roundedNumber}')
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