Difference between revisions of "EGR 103/Concept List/F22"

From PrattWiki
Jump to navigation Jump to search
(Created page with "== Lecture 1 - 8/29 - Course Introduction == * Main class page: [http://classes.pratt.duke.edu/EGR103F22/ EGR 103L] ** Includes links to Sakai, Pundit, and Ed pages * Sakai pa...")
 
Line 4: Line 4:
 
* Sakai page: [https://sakai.duke.edu/portal/site/egr103f22 Sakai 103L page]; grades, surveys and tests, some assignment submissions; first day slideshow in Resources section
 
* Sakai page: [https://sakai.duke.edu/portal/site/egr103f22 Sakai 103L page]; grades, surveys and tests, some assignment submissions; first day slideshow in Resources section
  
−
<!--
 
 
== Lecture 2  - 8/27 - Programs and Programming ==
 
== Lecture 2  - 8/27 - Programs and Programming ==
 
* Almost all languages have input, output, math, conditional execution (decisions), and repetition (loops)
 
* Almost all languages have input, output, math, conditional execution (decisions), and repetition (loops)
−
* Seven steps of programming [https://adhilton.pratt.duke.edu/sites/adhilton.pratt.duke.edu/files/u37/iticse-7steps.pdf The Seven Steps Poster]
+
* Seven steps of programming [https://adhilton.pratt.duke.edu/sites/adhilton.pratt.duke.edu/files/u37/iticse-7steps.pdf The Seven Steps Poster].  Also, for Monday's class:
 
** Watch video on [https://www.coursera.org/lecture/duke-programming-web/developing-an-algorithm-nopgq Developing an Algorithm]
 
** Watch video on [https://www.coursera.org/lecture/duke-programming-web/developing-an-algorithm-nopgq Developing an Algorithm]
 
** Watch video on [https://www.coursera.org/lecture/duke-programming-web/a-seven-step-approach-to-solving-programming-problems-AEy5M A Seven Step Approach to Solving Programming Problems]
 
** Watch video on [https://www.coursera.org/lecture/duke-programming-web/a-seven-step-approach-to-solving-programming-problems-AEy5M A Seven Step Approach to Solving Programming Problems]
−
* Consider how to decide if a number is a prime number
+
* Problem: Consider how to decide if a number is a prime number
 +
** Some "shortcuts" for specific factors but need to have a generalized approach
 +
** See if number is evenly divisible by any integer between 2 and the square root of the number - but how do we ask the computer to do that?
 +
* Quick tour of Python
 +
** Console (with history tab), variable explorer (with other tabs), and editing window
 +
** Main numerical types: whole numbers (int) and numbers with decimals (float)
 +
** Can use % (called "mod") to get "remainder"
 +
*** If both items are integers, result is an integer; if either is a float, result is a float
 +
** Relational operators: < <= == >= > !=
 +
*** Result is is either <code>True</code> or <code>False</code>
 +
* Comments in code:
 +
** If there is a <code>#</code>, Python ignores everything remaining in that line after the #
 +
** If there are <code>"""</code> or <code>'''</code>, Python ignores everything until the closing <code>"""</code> or <code>'''</code>
 +
** If you use <code># %%</code> in Spyder, the editing window will set up a '''cell''' and light up the cell your cursor is in.  Cells have no impact on how the code runs, just how the code appears in the window
 +
<!--
 
* To play with Python:
 
* To play with Python:
 
** Install it on your machine or a public machine: [https://www.anaconda.com/download/ Download]
 
** Install it on your machine or a public machine: [https://www.anaconda.com/download/ Download]
−
* Quick tour of Python
 
−
** Editing window, variable explorer, and console
 
−
** Main numerical types: whole numbers (int) and numbers with decimals (float)
 
 
** + - * // (rounded division) and % (remainder / modula) produce in if both sides are an int, float if either or both are floats
 
** + - * // (rounded division) and % (remainder / modula) produce in if both sides are an int, float if either or both are floats
 
** / (regular division) and // (rounded division) produces float with ints or floats
 
** / (regular division) and // (rounded division) produces float with ints or floats
Line 24: Line 34:
 
** <code>VAR = input("prompt: ")</code> will ask the user for a value and stores whatever they type as a string
 
** <code>VAR = input("prompt: ")</code> will ask the user for a value and stores whatever they type as a string
 
** <code>NUM = int(VAR)</code> will convert the item in VAR to an integer if it looks like an integer; error otherwise
 
** <code>NUM = int(VAR)</code> will convert the item in VAR to an integer if it looks like an integer; error otherwise
−
 
 
== Lecture 3 - 8/30 - "Number" Types ==
 
== Lecture 3 - 8/30 - "Number" Types ==
 
* Finished prime number checker - code is available in the Box drive for the class under Lectures / Lec03
 
* Finished prime number checker - code is available in the Box drive for the class under Lectures / Lec03

Revision as of 16:50, 2 September 2022

Lecture 1 - 8/29 - Course Introduction

  • Main class page: EGR 103L
    • Includes links to Sakai, Pundit, and Ed pages
  • Sakai page: Sakai 103L page; grades, surveys and tests, some assignment submissions; first day slideshow in Resources section

Lecture 2 - 8/27 - Programs and Programming

  • Almost all languages have input, output, math, conditional execution (decisions), and repetition (loops)
  • Seven steps of programming The Seven Steps Poster. Also, for Monday's class:
  • Problem: Consider how to decide if a number is a prime number
    • Some "shortcuts" for specific factors but need to have a generalized approach
    • See if number is evenly divisible by any integer between 2 and the square root of the number - but how do we ask the computer to do that?
  • Quick tour of Python
    • Console (with history tab), variable explorer (with other tabs), and editing window
    • Main numerical types: whole numbers (int) and numbers with decimals (float)
    • Can use % (called "mod") to get "remainder"
      • If both items are integers, result is an integer; if either is a float, result is a float
    • Relational operators: < <= == >= > !=
      • Result is is either True or False
  • Comments in code:
    • If there is a #, Python ignores everything remaining in that line after the #
    • If there are """ or , Python ignores everything until the closing """ or
    • If you use # %% in Spyder, the editing window will set up a cell and light up the cell your cursor is in. Cells have no impact on how the code runs, just how the code appears in the window
Retrieved from "https://pundit.pratt.duke.edu/piki/index.php?title=EGR_103/Concept_List/F22&oldid=28322"