GitHub Classroom
Lab 2 - Functions in python
Functional programming is a programming paradigm where everything is a function
In this lab, we will mimic a functional programming style!
Note: Keep in mind that it’s highly impractical to mimic like this, however the purpose of this exercise is to familiarize yourselves with functions
Of course, we can’t do everything as a function: assignments and function definitions will remain. We will only work on arithmetic operations
Arithmetic operations Example when replacing original operators with functions
To functional
# Python code a = 5
b = (6 + a) / 3 ** 2 print(b)
# Functional variant a = 5
b = div(add(6, a), exp(3, 2)) print(b)
What is the behavior of add(a,b)?
What is the behavior of add() x x+y
• How many inputs? y
# add() def add(a,b) : return a + b
• How many outputs?
• What will be the output?
Task 1
Implement the following functions
Sub() Div() Mult() exp()
Quizzes Quizzes Quizzes Quizzes - / * **
exp(2,4) = 2 * 2 * 2 * 2
Also add neg() and sqrt()
• E.g., neg(5) should return -5, neg(-5) should return 5
• E.g., sqrt(16) should return 4
Follow the comments in “func.py”
Conditions
• Do not import anything
• Do not use any techniques not taught in class yet
Task 2
The next task is to reproduce the result of task 1 of Lab 1 : the quadratic formula
Except this time, use only the six functions above
(variable assignments can be done as usual, of course)
Conditions
• Do not import anything
• No outside function
• No arithmetic operators outside your functions
