Simple formatted ASCII output

Function out.m sends ASCII data onto a screen or into a file in required or default formats. Data may be strings, and integer, real or complex numbers and matrices. The format is remembered for following outputs. The function extends possibilities yielded by the function disp and simplifies applications of fprintf.

Examples:

% display a matrix in the '%15.6e' format:
out(rand(2,3));
% create a complex matrix Z:
Z = rand(3,2)+i*rand(3,2);
% write Z in the '%15.6e' format to the file:
h = out(Z,'','cmplxZ.dat');
% append new line into the file:
out('','%s\n',h);
% append Z in the '%8.4f' format
out(Z,'%8.4f',h);
% close the file 'cmplxZ.dat':
out;
% make the new line character:
lf = char(10);
% display a string ending with new line:
out(['This is a string' lf]);
% display a column of integers:
out(1:5,'%4i\n');
% display a line of 50 characters '=':
out(char('='*ones(1,50)),'%s\n');