Question

Look at the add1 procedure and add2 function in program Functions03.py. Both of these receive 2 parameters and compute their sum. List 2 differences between these 2 subroutines.

EX: add1
def add1(n1,n2):
sum = n1 + n2
print(n1,"+",n2,"=",sum)
EX: add2
def add2(n1,n2):
sum = n1 + n2
return sum

Answer 1

The differences between add1 and add2 in a Python program are that add1 prints the result while add2 returns it, and add1 is a procedure not returning any value, whereas add2 is a function that returns the computed sum.

Step-by-step explanation:

The question asks about the differences between two subroutines, add1 and add2, in a Python program. The key differences lie in how the results of the sum are handled by each subroutine. Here are the two differences:

• The add1 procedure computes the sum of two parameters and then prints the result directly within the procedure. In contrast, the add2 function computes the sum and returns the result, allowing for further use of the sum outside the function.
• add1 does not return any value, whereas add2 returns the computed sum, which is a key distinction between a procedure and a function in programming.

As illustrated with positive and negative numbers, regardless of the procedure or function used, the rules of addition apply: adding two positive numbers results in a positive sum, adding two negative numbers results in a negative sum, and adding numbers with opposite signs requires subtracting the smaller number from the larger and assigning the sign of the larger number to the result.