Learn about and revise programming concepts with this BBC Bitesize Computer Science AQA study guide.

Variables In programming, a variable is like a labeled box where you can store information. Each box has a name and can hold a specific type of information, like numbers, words, or true/false ...

In programming, a variable is a container (storage area) to hold data. To indicate the storage area, each variable should be given a unique name (identifier). Variable names are just the symbolic ...

The variable in the RANGE statement, the ID variables, and the BY variables are available for the model program to examine, but their values should not be changed by the program.

Mathematical programming discriminant analysis models must be normalised to prevent the generation of discriminant functions in which the variable coefficients and the constant term are zero. This ...