From Evernote:

Matlab 变量保存成 ASCII 文件 Clipped from: http://www.mathworks.cn/cn/help/matlab/ref/dlmwrite.html

可以使用如下几个命令

save

dlmwrite

fprintf

save 不能指定格式

推荐使用 dlmwrite

参数如下

Attribute	Value
delimiter	Delimiter string to be used in separating matrix elements
newline	Character(s) to use in terminating each line (see table below)
roffset	Offset, in rows, from the top of the destination file to where matrix data is to be written. Offset is zero based.
coffset	Offset, in columns, from the left side of the destination file to where matrix data is to be written. Offset is zero based.
precision	Numeric precision to use in writing data to the file. Specify the number of significant digits or a C-style format string starting in %, such as '%10.5f'.

x = 0:.1:1;  A = [x; exp(x)];    fileID = fopen('exp.txt','w');  fprintf(fileID,'%6s %12s\n','x','exp(x)');  fprintf(fileID,'%6.2f %12.8f\n',A);  fclose(fileID);