Unit #2-01

Learning Outcome

At the end of this lesson, you will be able to:

• understand the six (6) steps to solve any problem

• understand how to use built in modules

Review

• review doing basic mathematical operations in code

Lesson

• the six (6) steps to solve a problem (or variations of this, see image below: ↓) are well known and used all the time

• read Problem Solving, from textbook Computer Based Problem Solving

  • read the "Problem Solving" section,  "Steps in Problem Solving" and "Example Problems"

    • up to and including "Folding Paper" example

• go over modules and how to import them

  • import math

  • see video "Importing modules, in Python"

Activity

• do "Folding Paper" experiment

Daily Assignment

• read Problem Solving, Computer Based Problem Solving

  • read the "Problem Solving" section,  "Steps in Problem Solving" and "Example Problems"

• create a program that calculates the circumference of a circle with diameter 42 mm, with proper style and shows 5 decimal places  (see terminal output below: ↓)

  • remember to use math.pi and not 3.14

  • C = πd

  • come up with this time just one (1) test case, BEFORE YOU WRITE THE CODE to ensure you know what the answer should be BEFORE you start coding

    • then check to ensure your answers are correct!

Extra

• create the same above program in C

  • in C π is M_PI

• in C we will be using "Libraries"

  • what we did above in python is actually a library as well, it is just more commonly referred to as a module

  • C has modules using an import statement as well, there are technical differences though