Changes

ipython3

</source>When passing arguments up to functions, you MUST contain data such as '''strings''', '''numbers''', or '''variable names''' within '''brackets''' immediately following the function name.<br><br>'''NOTE:''' Normally, when a function is declared that accepts arguments, those '''arguments must be declared''' (using variable names). Those declared variable names are then used within the function for processing. Also, when you call a function with arguments, the number of arguments passed up to the function must correspond (match) the number of arguments that were specified in the function declaration.<br><br>

def square(number):

return number ** 2