Accessing Android Device File From PC Wirelessly

Step-by-step:

1. Install SSHDroid from google play:
SSHDroid
2. Open SSHDroid in your android device
3. Open file explorer (nautilus in Ubuntu or Windows Explorer in Ms. Windows)
4. Input the address in address bar PC as shown in Android device, It's like sftp://root@192.168.x.x:2222 password: admin
5. Explore your files in Android device from PC (like copy-paste and other)
6. Enjoy it!

Explore android file from Ubuntu PC

Installing Octave 3.6.1 in Ubuntu 12.04

Step-by-step:

1. Add the following ppa to your repository 
$ sudo add-apt-repository ppa:picaso/octave
2. Update and Install the octave
$ sudo apt-get update && sudo apt-get install octave
3. Run the following command to update the package
sudo apt-get install liboctave-dev
4. Need additional packages? Here are the examples. You can find other packages depend on your needs.
$ sudo apt-get install octave-control octave-audio octave-signal octave-plot
5. Run Octave
$ octave -q 

For GNU Octave 4.0, and 4.0.1 you can follow the following procedure.

Install gWaei 3.6.1 on Ubuntu 12.04 64 bit

Step-by-step:

1. Download gwaei source file here
2. Extract the tar file

    $ sudo tar -xf gwaei-3.6.1

3. Install dependencies

   $ sudo apt-get install sudo apt-get install gcc autoconf automake make intltool gettext     rarian-compat gnome-doc-utils dconf gsettings-desktop-schemas     imagemagick libcurl4-gnutls-dev libhunspell-dev libmecab-dev libgtk-3-dev

4. Change to gwaei directory

   cd gwaei-3.6.1/

5. Do install

   ./configure

   sudo make
   
   
   sudo make install 
6. Add dictionaries. Follow the instruction on gwaei screen
7. Use gwaei

gWaei 3.6.1 on Ubuntu 12.04.1 64-bit