How can I write a magic(5) matrix to a text file with special delimiters?

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ARAH MIZORI
ARAH MIZORI 2021-9-13
回答： Chunru 2021-9-13
I want to a matrix in txt for with the delimeter %%%

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Chunru
Chunru 2021-9-13
Ran in:
x = magic(5);
fid = fopen('test.txt', 'w');
fprintf(fid, '%f\n', x); % try different format here
fclose(fid)
ans = 0
type('test.txt')
17.000000 23.000000 4.000000 10.000000 11.000000 24.000000 5.000000 6.000000 12.000000 18.000000 1.000000 7.000000 13.000000 19.000000 25.000000 8.000000 14.000000 20.000000 21.000000 2.000000 15.000000 16.000000 22.000000 3.000000 9.000000

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