gallons code

[imran akhtar]

here i have made code, how could i imporve this version of my code, and make it more effeicnt. below is the code.

i have Write a program that asks the user to input
• The capacity in gallons of a fuel tank
• The fuel efficiency in miles per gallon
• The price of a gallon of petrol
Then outputs:
• how far the car can go with the gas in the tank (capacity x mpg)
• and the cost per 100 miles. (100/mpg*price)
i have to also Ensure the output is in integer format, to a precision of 5.

print "--------Welcome To Fuel Calculator Program--------"

capacity = input ("\nPlease enter the capacity of the fuel tank in gallons: ")

mpg = input ("Please enter the fuel efficiency in MPG: ")

pricepergallon = input ("Please enter the price per gallon of petrol? £: ")

carcango = capacity * mpg

print "\n\nOn a full tank, the car can travel:","\t%.5d" % carcango, "miles"

print "The cost of travelling 100 miles is: \t£""%.5d" % (100.0/mpg *pricepergallon)

print "\n--------End Program--------"

[Curtis Rutland]

Please check my reply in your other thread.

MODERATOR

[imran akhtar]

but look, if you can see, i have try to make code for this question, i just want your help, to tell, me how i could imporve my verion of code.

[bvdet]

Use raw_input() instead of input(). Function input() evaluates the entered string and is typically not recommended for this type of application. Since raw_input() always returns a string, you will need to convert to a number, probably with float().

The pound sign can be represented by "\xa3". Python does not like literal unicode characters such as "£".

I have reformatted your print statements. To format an integer, use %d. To format a float to 2 decimal places, use %.2f.

[code=Python]print "--------Welcome To Fuel Calculator Program--------"

capacity = float(raw_input ("Please enter the capacity of the fuel tank in gallons: "))

mpg = float(raw_input ("Please enter the fuel efficiency in MPG: "))

pricepergallon = float(raw_input ("Please enter the price per gallon of petrol (\xa3)"))

carcango = capacity * mpg

print "\n\nOn a full tank, the car can travel:\t%d miles" % carcango

print "The cost of travelling 100 miles is: \t\xa3%.2f" % (100.0 / mpg * pricepergallon)

print "\n--------End Program--------"[/code]

HTH
-BV

[imran akhtar]

code

i made the changes you told me to make, but now the programe does, not work, as an there is error message, which says " capacity = float (raw_imput("\nP lease enter the capacity of the fuel tank in gallons: "))
NameError: name 'raw_imput' is not defined"

below is the code;

print "--------Welcome To Fuel Calculator Program--------"

capacity = float (raw_imput("\nPlease enter the capacity of the fuel tank in gallons: "))

mpg = float(raw_imput("Please enter the fuel efficiency in MPG: "))

pricepergallon = float(raw_input("Please enter the price per gallon of petrol? £: "))

carcango = capacity * mpg

print "\n\nOn a full tank, the car can travel:","\t%.5d" % carcango, "miles"

print "The cost of travelling 100 miles is: \t\xa3%.2f" % (100.0/mpg *pricepergallon)

print "\n--------End Program--------"

[boxfish]

Are you sure you can't understand this error message? It says it doesn't know what you mean by "raw_imput" . It's just a spelling mistake.