On Fri, Sep 28, 2012 at 1:18 AM, jh <[email protected]> wrote: > Howdy Folks, > > I'm using Python 3.2.3, IDLE 3.2.3 (on Windows 7 64-bit if it matters) > > Here is my code: > > > # Write a program that asks for the prices of 5 items then displays the > subtotal > # of the 5 items, then calculates sales tax (6 percent), and the displays > the total. > > # Get input for the prices of 5 items from the user > > item1 = float(input('Enter the price of item 1: ')) > item2 = float(input('Enter the price of item 2: ')) > item3 = float(input('Enter the price of item 3: ')) > item4 = float(input('Enter the price of item 4: ')) > item5 = float(input('Enter the price of item 5: ')) > > # Calculate and print the subtotal of the items > > subtotal = item1 + item2 + item3 + item4 + item5 > > print('The subtotal of your items is:', subtotal) > > # Calculate sales tax and add it to the subtotal > > tax = subtotal * .06 > total = subtotal + tax > > # Display the total to the user > > print('The total amount of your items plus tax is:' , \ > format(total, ',.2f')) > > > And here's my output: > > Enter the price of item 1: 12.36 > Enter the price of item 2: 55.63 > Enter the price of item 3: 32.36 > Enter the price of item 4: 358.28 > Enter the price of item 5: 25552.22 > The subtotal of your items is: 26010.850000000002 > The total amount of your items plus tax is: 27,571.50 > > My question here is, why does my subtotal have so many decimals when I never > went above 2 in my input? > > Thanks in advance, > J >
>>> x = round(float(10),2) >>> x 10.0 >>> x + round(float(1000.755555),2) 1010.76 >>> You have to round(float_number_variable,2) the float off. -- Best Regards, David Hutto CEO: http://www.hitwebdevelopment.com _______________________________________________ Tutor maillist - [email protected] To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
