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Chapter 15: Software development and programming (15.5 Function (Functions…
Chapter 15: Software development and programming
15.1 What does a computer program look like?
Flowchart: It is often used by computer programmers to help them think through the order in which steps in their code need to be arranged.
Pseudocode: pseudocode is very much like plain English. Pseudocode is written in almost the same form as program code, but without using a real programming language.
15.2 Basic programming ideas
Natural languages: computers are not yet able to interpret natural English reliably.
Complex machine means complex programs
The big picture: inputs, processing and outputs
Parts of a program
Sequence
Selection
Repetition
Variables
initialising variables
Declaring variables
15.3 Data types
Strings
Boolean
Characters
Intergers
Real number
Data and time
15.4 Operators and assignment statements
Assignment statements
Concatenation
Operators
15.5 Function
Functions that round numbers
Input functions
Output functions
Mathematical functions
String-handing functions
Other functions
Contant
Algorithms
Describing problem
Flowcharts