Python Review - Functions

WHAT IS A SUBPROGRAM?

• Inside the parentheses of a function

• The act of assigning a value to an argument for use by a function

• A variable used to send information to a function

• A collection of commands given a name that return a value or perform an action

What is a return in a subprogam?

• Keyword that tells the subprogram what to print

• Keyword that tells the subprogram what value to send back

• Keyword that tells the subprogram what to add

• Keyword that tells the subprogram what to multiple

What is a parameter in a function?

• input value to a function for the function’s execution

• a variable used to send information to a function

• the name of the function

• the name of the main program calling the function

WHAT ARE THE REASONS FOR USING SUBPROGRAMS (ALIAS FUNCTIONS)?

• To build code that will be reused

• To simplify code

• To add comments

• Help us to organize longer programs

WHAT ARE THE STEPS TO ADD A FUNCTION TO A PROGRAM?

• Print the function

• Define the function

• Add it above the main program

• Return the function

Subprograms go ABOVE main program

• True

• False

WHAT IS THE DIFFERENCE BETWEEN A PARAMETER AND A FUNCTION?

• 1.Functions input values to a parameter

  2.Parameter operate on those function values

• 1.Parameters input values to a function

  2.Functions operate on those parameter values

DOES THE FOLLOWING CODE RETURN A STRING OR NUMBER?

def f( ) :

return “3”

• String

• Number

DOES THE FOLLOWING CODE RETURN A STRING OR NUMBER?

def f( ) :

return 14

• String

• Number

WHY IS IT NECESSARY TO DO SOMETHING (I.E. STORE IN A VARIABLE OR PRINT) TO THE VALUE RETURNED BY A FUNCTION?

• To allow the function to run.

• The value will not be stored in memory and will be lost otherwise.

• The function will return a syntax error without a print or return command.

• The main program will return a syntax error if the function does not print or return the value.