Python/ programming

Python/ programming

1. strings

   • they represent un-coded characters

2. variables

   • changes can be made to these values, they can consist of numbers and letters.

3. 'frying an egg'

   • The computer must have the steps broken down to one at a time... "1-put pan on hob 2-break egg 3-get frying pan 4-put oil in pan 5-turn on hob 6-hold egg over pan"
   • steps must be in order
     • Algorithm
       • At set of rules put in a certain order to complete/solve a problem. If they aren't done in a specific order (one of a few options), you cannot solve the problem.
     • sequence
       • The order in which the computer must perform each step.
   • Decomposition
     • When you break down the problem into smaller simpler steps.

4. IDLE

   • Integrated Development Environment

5. SYNTAX ERROR

   • Error in the source code
   • debug
     • when there is a syntax error, you must do this. You check through all the code you've written and correct

6. python

   • in coding, you can put " or '. Brackets may be needed though
   • you can assign any name to variables
     • a = "Hello"
     • if it is a word it is a string.
     • If it is a number

7. Array

   • a list of string
   • print with one number
     • if a = "Hello world" then print(a[1]) = H because all characters are numbered, including spaces.
   • printing with 2 numbers
     • it gets the characters from position 2 to position 5 (not included) b = "Hello, World!" print(b[2:5]) = llo
   • Indexing