CODEWITHSUNDEEP
pythonpython-3.x
arturoba15
arturoba15

Reputation: 75

My function doesn't calculate a simple math operation

I'm making a Temperature Calculator Celsius and Farenheit

I'm a completely begginer in Python

I have Python 3.3

So, I made this function to calculate a Farenheit value to a Celsius value

def C():
    print('Enter a temperature:')
    Fvalue = input()
    print(int(Fvalue) - int(32) * int((5/9)))

I run it and it just prints the Fvalue itself, it doesn't make the math operations

I hope you can help me guys

Upvotes: 4

Views: 181

Answers (4)

user8534489
user8534489

Reputation:

Your code be should be as given below, u don't require casting for integers 32 and (5/9), 

def C():
print('Enter a temperature:')
Fvalue = input()
print(int(Fvalue) - 32 * 5/9)

Upvotes: 0

Rohit Jain
Rohit Jain

Reputation: 213223

The problem is, you are casting the value of 5 / 9 to an int, which will give you 0 as a value. Just remove the cast, and it will be fine. And also you need to add parenthesis around the subtraction.

Change your print statement to:

print((int(Fvalue) - 32) * 5/9)

Upvotes: 2

jh314
jh314

Reputation: 27792

int((5/9)) gives you 0, so int(32) * int((5/9)) is 0, so you simply print Fvalue

This should fix your issue:

print((int(Fvalue) - 32) * 5.0 / 9))

With some easy math, this expression would be cleaner:

print (Fvalue - 32) / 1.8

Upvotes: 0

karthikr
karthikr

Reputation: 99620

Your real problem lies here:

int(5/9)

5/9 gives you 0.555 which when cast to int() gives you 0

Try this:

print((int(Fvalue) - 32) * 5/9)

Upvotes: 2

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