First dimension: row

Second dimension: columns

Third dimension: page

Create multidimensional arrays using subscripts

Use MATLAB functions to generate multidimensional arrays

Use the cat function to create a multidimensional array

Users write M files themselves to generate multi-dimensional arrays

Directly add or delete elements in multi-dimensional arrays, change multi-dimensional array dimensions or change the amount of data in each dimension

Use the reshape function to change the size of each dimension of the multidimensional array and the number of dimensions of the multidimensional array.

Use struct function

Use assignment statements

functional method

direct assignment method

Braces to access content

Parentheses access cells

celldisp() specific content

cellplot() graphic display

String type data occupies 2 bytes of storage space for every two characters.

char(): Create a character array

double(): double precision value

ischar():

iscellstr()

isletter()

isspace

strcat() connection

strvcat() vertical connection

strcmp() comparison function

strcmpi() comparison function

strncmp() compares whether the first n characters of two strings are the same styrcmpi()

findstr() finds short subcharacter in long

strjust() adjusts character array

strmatch() finds matching string

strrep() string search and replacement

strtok() finds the capital of a string

eval() evaluates a MATLAB expression represented as a string

num2str() converts numerical values ​​into strings

int2str() converts an integer into a string

str2num() converts characters into numeric values