How can I write an array to a txt file such that it looks like MATLAB syntax

If I have an array, for example

A = [1 2 3 4;

-1 0 1 2;

3 9 5 7;

12 100 1000 1012];

How can I write this to a text file such that when I do, it will look the same as what I wrote to declare A? In otherwords I want the txt file to contain

A = [1 2 3 4; 
-1 0 1 2; 
3 9 5 7; 
12 100 1000 1012];

Answer 1

[Fangjun Jiang]

use mat2str(), write the string to the text file

A = [1 2 3 4; 
    -1 0 1 2; 
    3 9 5 7; 
    12 100 1000 1012];
str=mat2str(A)

str = '[1 2 3 4;-1 0 1 2;3 9 5 7;12 100 1000 1012]'

eval(str)

ans = 4×4

1 2 3 4 -1 0 1 2 3 9 5 7 12 100 1000 1012