How to save a matrix as text file? PROBLEM REFORMULATION!!!

I want to save a matrix as text file.

Each column should be separated by tab.

The output file should be read with any text editor

When the output is opened, it should display the numbers

in the same way it looks like in Matlab.

For example, let the matrix be

M=

1 4 7

2 5 8

3 6 9

I tried to save using the following command:

save MATRIX.txt M -ASCII -tabs

but when I opened either with Notepad,

I got the following as a result:

MATRIX.txt=

1.0000000e+000 4.0000000e+000 7.0000000e+000

2.0000000e+000 5.0000000e+000 8.0000000e+000

3.0000000e+000 6.0000000e+000 9.0000000e+000

How to correct this command or to write a new command

such that input and output are identical?

Thank you for your help

Emerson

Answer 1

[Walter Roberson]

fid = fopen('Matrix.txt', 'wt');
fprintf(fid, [repmat('%g\t', 1, size(M,2)-1) '%g\n'], M.');
fclose(fid)

There is a different approach:

fid = fopen('Matrix.txt', 'wt');
fwrite(fid, '%s', evalc('disp(M)'));
fclose(fid)

This will literally output whatever Matlab would, including things like writing a vector in a cell array out as (e.g.) [2 x 3 double]

[Emerson De Souza]

Thank you Walter,

I used the first expression and

it made what I needed.

I wish you a nice day

Emerson