Basics of MATLAB and Beyond

t = {’help’ spiral(3) ; eye(2) ’I’’m stuck’};>> tt = {t t ;t’ fliplr(t)};>> tt{2,2}{2,1}(5:9)ans =stuck28 StructuresStructures are arrays whose names have dot-separated parts. They canbe used to store information of different kinds together in a hierarchicalstructure. Let us do a simple example:>> staff.name = ’John Smith’staff =name: ’John Smith’>> staff.age = 43staff =name: ’John Smith’age: 43>> staff.favourites = [1 42 37]staff =name: ’John Smith’age: 43favourites: [1 42 37]We have created a structure called staff which is of size 1 × 1:>> whosName Size Bytes Classstaff 1x1 424 struct arrayThe staff structure has three fields: name, age, and favourites:>> staffstaff =name: ’John Smith’age: 43favourites: [1 42 37]To add another staff member’s data to this structure, add subscripts todefine a second element:staff(2).name = ’Jane Smythe’;staff(2).age = 30;staff(2).favourites = [pi eps realmax realmin NaN Inf];The sizes of the fields do not have to be the same for each element of thestructure. For example, Jane Smythe’s favourite vector contains moreelements than John Smith’s.c○ 2000 by CRC Press LLC