Pycharm does not show plot

just use "plt.show()"


for example
...

plt.figure(figsize=IMAGE_SIZE)
plt.imshow(image_np)
plt.show()

...

Thank you.

Install Hangul(Korean) on Utubu

type this on terminal

..

dpkg -l | grep ibus-hangul
or
sudo apt-get install ibus-hangul

..

Ubuntu CUDA install on Console

Uninstall previous version
..

sudo apt-get purge cuda
sudo apt-get purge libcudnn6
sudo apt-get purge libcudnn6-dev

..


Install cuda 9.0, cuDnn 7.0
..

wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1604/x86_64/cuda-repo-ubuntu1604_9.0.176-1_amd64.deb
wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1604/x86_64/libcudnn7_7.0.5.15-1+cuda9.0_amd64.deb
wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1604/x86_64/libcudnn7-dev_7.0.5.15-1+cuda9.0_amd64.deb
wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1604/x86_64/libnccl2_2.1.4-1+cuda9.0_amd64.deb
wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1604/x86_64/libnccl-dev_2.1.4-1+cuda9.0_amd64.deb
sudo dpkg -i cuda-repo-ubuntu1604_9.0.176-1_amd64.deb
sudo dpkg -i libcudnn7_7.0.5.15-1+cuda9.0_amd64.deb
sudo dpkg -i libcudnn7-dev_7.0.5.15-1+cuda9.0_amd64.deb
sudo dpkg -i libnccl2_2.1.4-1+cuda9.0_amd64.deb
sudo dpkg -i libnccl-dev_2.1.4-1+cuda9.0_amd64.deb
sudo apt-get update
sudo apt-get install cuda=9.0.176-1
sudo apt-get install libcudnn7-dev
sudo apt-get install libnccl-dev

..


Add below code the end of ./bashrc file
..

export PATH=/usr/local/cuda-9.0/bin${PATH:+:${PATH}}
export LD_LIBRARY_PATH=/usr/local/cuda-9.0/lib64${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}

..

And reboot.


refer to here : https://yangcha.github.io/CUDA90/

Linux wifi driver on Mac device

just input this command


sudo apt-get update
sudo apt-get install firmware-b43-installer

Tip, uninstall virtualbox on ubuntu

find virtualbox s/w

$> dpkg -l | grep virtualbox

the name is depends on your installation name

uninstall virtualbox
$> sudo apt-get remove --purge virtualbox-5.2

Install sublime text 3 on ubuntu using console command

Open terminal (control + alt + T) and follow below command


...

1. run command to install the key
wget -qO - https://download.sublimetext.com/sublimehq-pub.gpg | sudo apt-key add -


2. add the apt repository via command
echo "deb https://download.sublimetext.com/ apt/stable/" | sudo tee /etc/apt/sources.list.d/sublime-text.list


3. install
sudo apt-get update
sudo apt-get install sublime-text


4. uninstall
sudo apt-get remove sublime-text && sudo apt-get autoremove

..

refer to this page : http://tipsonubuntu.com/2017/05/30/install-sublime-text-3-ubuntu-16-04-official-way/


Thank you.