This is explained in the octave documentation.
Save mat file octave.
Anyway if what you want is to save data in the matlab binary format have a look at the mat binary option for the save command.
Better if i can save a mat file in octave.
The default format of files written by the save command can be controlled using the functions save default options and save precision.
S save v1 v2 save the named variables v1 v2 in the file file.
The files are saved in your current directory as seen on the top of the window.
Diary filename saves all the text input in the command window to a text file.
If you do not specify filename the save function saves to a file named matlab mat.
14 1 3 simple file i o.
As an example the following code creates a 3 by 3 matrix and saves it to the file myfile mat.
If filename has no extension that is no period followed by text and the value of format is not specified then matlab appends mat if filename does not include a full path matlab saves to the current folder.
Name of file specified as a character vector or string scalar.
Octave s default so called mat file format is not a binary mat file at all it is in fact a text file format that octave developed for itself.
Save the data in octave s text data format.
On platforms other than windows the file extension does not necessarily relate to the data format.
Default this proprietary text format is not and never has been compatible with any of the publicly documented mat binary file formats.
Save saves data to files mat by default not true in octave 4 files have no extension uisave includes user interface.
Save options file struct struct f1 f2.
Hgsave saves figures to files fig by default.
Save v1 v2.