Which method is used to access the elements of a structure array in MATLAB?

Accessing the elements of a structure array in MATLAB is done using dot notation. This method allows users to retrieve specific fields from a structure array efficiently. Each structure can have multiple fields, and by using the dot notation, you specify the structure name followed by a dot and the field name. For example, if you have a structure array named "student" with a field called "name," you would access a specific student's name using "student(i).name", where "i" indicates the index of the structure in the array.

Dot notation is particularly effective because it makes the code more readable and directly indicates which field within the structure is being accessed. Each field can also contain different data types, including arrays, which can be easily managed using this method.

Other methods, such as parentheses for indexing, square brackets for array concatenation, and curly braces for cell arrays, do not apply to structure arrays for accessing fields. Therefore, dot notation is the clear choice for retrieving element values from a structure array in MATLAB.