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+--- Thread: Division calcuation with answers to 1decimal place. (/thread-34283.html)
Division calcuation with answers to 1decimal place. - sik - Jul-14-2021
I'm trying to write a program that takes two random integers from 0-10 and divides them by each other and have the user enter the answer to one decimal place.
I keep on getting incorrect even though I think I'm trying in the correct answer.
The code is below. Please help.
import random
first = random.randint(0,10)
second = random.randint(0,10)
symbol = " / "
print(first, symbol, second, "=")
answer = first / second
answer = ("{:.1f}".format(answer)) # division answer to 1 decimal place
print(answer) # The print is for testing purposes.
user_answer = float(input("enter you answer to one decimal place"))
# mark answer
if user_answer == answer:
# correct
print("Correct!")
else:
# incorrect
print("Incorrect!")
RE: Division calcuation with answers to 1decimal place. - deanhystad - Jul-14-2021
You are comparing a str (answer) and a float (user_answer). They will never be equal. Leave the user input as a str and compare the strings.
RE: Division calcuation with answers to 1decimal place. - sik - Jul-14-2021
(Jul-14-2021, 03:57 PM)deanhystad Wrote: You are comparing a str (answer) and a float (user_answer). They will never be equal. Leave the user input as a str and compare the strings.
Thank you so much!
RE: Division calcuation with answers to 1decimal place. - DeaD_EyE - Jul-15-2021
some_value = 1.337
guessed_value = 1.3
# round(value, decimal_places)
if round(some_value, 1) == round(guessed_value, 1):
print("Rounded values are equal")If you made a calculation and want to compare if the two values are equal, you should use math.isclose.import math
value_a = 1337 * 1.3 / 42
value_b = 1337 / 42 * 1.3
print("Value_a:", value_a)
print("Value_b:", value_b)
if value_a != value_b:
print("The values are not equal")
if math.isclose(value_a, value_b):
print("But the values are close enough")Quote:Value_a: 41.38333333333334
Value_b: 41.38333333333333
The values are not equal
But the values are close enough
Just changing the order of calculation, will result in a different value.