#
# convert these functions to functions that get all of their input via
# parameters and return the results (where appropriate) to the
# caller. When you are done, there won't be any prompt for data from
# inside a function, or any print statement
#
# written by e.bonakdarian  march 2010
#


# needs parameters and a return value
def square():
    # squares a number
    num = input('enter number to square: ')

    print 'the result is ', num * num



# needs parameters and a return value
def average2():
    # average of two values
    num1 = input('enter number #1: ')
    num2 = input('enter number #2: ')
    
    avg =(num1 + num2) / 2.0
    
    print 'average is: ', avg
    


# needs parameters and a return value
def fahr2cels():
    # converts a fahrenheit temperature to celsius
    num = input('enter fahrenheit temperature: ')

    # code to convert fahrenheit to celsius
    # cels = ...?

    print 'the corresponding celsius valu is %.2f' % cels 


# you need to add your compute_BMI here and call it below


def QuickTest():
    # our simple test function -- you'll need to change this
    # to deal with functions that parameters and return values.

    square()
    average2()
    fahr2cels()


if __name__ == '__main__':
    QuickTest()

    raw_input('\n<enter> to exit')