10

Variables

Programming languages use variables to represent or 'hold' data. When a variable is created

eg. int a;

memory is allocated to store the data and the location.

int a = 75

stores the number 75 into memory. The programming sketch accesses the data by referencing 'a'.

What do you think are the advantages to using variables in a sketch? Hint: try changing the value of d or x.

CHALLENGE 10

Write a script that makes the Olympic symbol using variables.