Using the C++ Math Library

Dimensions and Subscripts in MATLAB

There are three types of data in MATLAB: numeric arrays, cell arrays, and structures (objects are just a special kind of structure). Therefore, there are three types of indexing, one for each type of data:

• Standard indexing, which uses parentheses ()
• Cell array indexing, which uses curly braces {}
• Structure indexing, which uses named fields, for example, color

Both standard indexing and cell array indexing take numeric arguments, one argument for each dimension of the array being indexed into, while structure indexing uses only the name of the structure field.

Note    Standard indexing can be used with all three types of data, while cell array indexing can only be used on cell arrays, and structure indexing only on structures. You can combine, for example, standard indexing and structure indexing on a structure.

Terminology

Dimensions and Subscripts in the MATLAB C++ Math Library