2.1 Pseudocode & Flow Diagrams

2.1 Pseudocode & Flow Diagrams

1. LOGICAL OPERATORS

   • AND
     • OR
       • NOT

2. ARITHMETIC OPERATORS

   • MOD -outputs remainder
     • DIV -disregards d.p/remainders

3. FLOW DIAGRAMS

   • terminal>
     • sequence of steps
     • process>
       • subroutine>
         • decision>
           • input/output>

4. 2D Array

   • ARRAY board[8,8]
     • board[0,0]
   • Arrays
     • takes lists
     • ARRAY names[5]
       • names[1]="Craig"
         • names[2]="Dave"

5. SUBSTRING

   • extracts characters

6. FUNCTION

   • takes/returns values of variables/parameters
   • parameters - expected value

7. FILE HANDLING

   • file=OPENWRITE("filename.txt")
     • allows user to open and write on file
   • x=file.READLINE()
     • allows user to read file
   • PYTHON
     • /r
       • read
         • read/opens file
       • /w
         • write
           • add/edit/delete
         • /a
           • append
             • adds to file