Notes for Unit 2 - Illustrative programs
Program 1
Source Code
Sample Output
Demo
run python3 swap.py
in https://repl.it/@ashokb/unit-2-illustrative-programs
Program2
Source Code
Sample Output
Demo
run python3 circulate.py
in https://repl.it/@ashokb/unit-2-illustrative-programs
Program 3
Question | Answer |
---|---|
Coordinate Geometry Terms
Coordinate Geometry Definition - It is one of the branches of geometry where the position of a point is defined using coordinates.
What are the Coordinates?
| What are the Coordinates?
Coordinates are a set of values which helps to show the exact position of a point in the coordinate plane. |
Coordinate Plane Meaning - A coordinate plane is a 2D plane which is formed by the intersection of two perpendicular lines known as the x-axis and y-axis.
What is the Distance Formula? | What is the Distance Formula?
It is used to find the distance between two points situated in A(x1,y1) and B(x2,y2)
|
What is the most logical way to represent a cartesian point in Python?
A. Use two variables, for e.g. x1 and y1 or x2 and y2 B. Use a single tuple variable C. None of the above | Choice B. Tuple is the logical way of representing a point in Python. |
What is the syntax for defining a point
A. B. C. Both the above are valid | Choice C.
(3, 4) and tuple(3, 4) are equivalent to each other.
|
How can you deconstruct a tuple that represents a point?
| How do you deconstruct a tuple?
If
then
|
What is the value of | |
What is the distance between (4, 0) and (0, 0)?
| 4
|
What is the distance between (4, 3) and (4, 0)?
| 3
|
What is the distance between (4, 3) and (0, 0)?
| Using previous formula, we get
But we know from https://www.mathsisfun.com/algebra/distance-2-points.html
|
If (x1 - x2) + (y1 - y2) is giving a higher value than what is correct,
What can the distance formula be? | Why not square the x component and square the y component, and then reduce it down by using square root?
The distance formula is as follows:
|
What is the distance between (2, -1) and (5, 3)? | |
Are you confident of writing the code for Distance between Two Points?
| Test yourself at http://j.mp/twoPointsCC |
Source Code
Sample Output
Demo
run python3 distance.py
in https://repl.it/@ashokb/unit-2-illustrative-programs
Teaching Assets
item | link | remarks |
---|---|---|
Video capture | http://j.mp/distanceThisVideo | demonstrates how to use Memcode and CyberDojo and Slides |
Memcode cards | useful for classroom and personal review | |
CyberDojo link | The super simple testing framework for capturing incremental coding sessions | |
Google Slides | Or PPTx file is better? | |
Auto-generated documentation | distance_between doctstring documentation | consolidates all docstrings in one place (docs/README.md) in the repo |
Bonus Material
Swap
There are actually 4 ways to do it. Please find all of them. https://www.geeksforgeeks.org/python-program-to-swap-two-variables/
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