float.sty multirow.sty not found

 sudo apt install texlive-latex-recommended

 sudo apt install texlive-latex-extra

 

double tilde in ceurart latex class

 cf: https://tex.stackexchange.com/questions/512516/pdfx-problem-with-double-tilde

Add the lines in preamble:

\makeatletter
\AtBeginDocument{\let\mathaccentV\AMS@mathaccentV}
\makeatother

 

Add Reference to Table of Contents

Add this line to the Reference: 

\addcontentsline{toc}{section}{Reference}

Speed Up macOS on vmware

 https://www.geekrar.com/speed-up-macos-mojave-on-virtual-machine/

usb 3.1 gen 1 gen2 ... etc.

 cf: https://www.kingston.com/tw/usb-flash-drives/usb-30

USB 3.1 Gen 1 與 USB 3.1 Gen 2 之比較

USB 3.1 Gen 1 及 USB 3.1 Gen 2 僅在速度上有所不同。USB 3.1 Gen 1 支援高達 5Gbit/s 的速度，而 USB 3.1 Gen 2 支援高達 10Gbit/s 的速度。USB-IF 打算使用不同名稱來稱呼 USB 3.1 Gen 1 和 USB 3.1 Gen 2，以便產品行銷。
他們想要將 USB 3.1 Gen 1 及 Gen 2 分別命名為「SuperSpeed USB」及「SuperSpeed USB+」，但業界並不買單。通常，OEMs 會對其規格表新增 5Gbps 或 10Gbps 的速度，以便在兩個 USB 標準之間作出區隔。業界其他公司則稱呼它們為「USB 3.1 Gen 1」或「USB 3.1 Gen 2」。

 

 

USB 3.2 面世

自此之後，USB 技術便突飛猛進，在 2017 年隆重推出 USB 3.2。USB 3.2 有四類，分別具有不同名稱及意義。四類USB 3.2：

	USB 3.2 Gen 1x1	USB 3.2 Gen 1x2	USB 3.2 Gen 2x1	USB 3.2 Gen 2x2
傳輸速度	5Gbps	10Gbps	10Gbps	20Gbps
先前名為	USB 3.1 Gen 1 及 USB 3.0	--	USB 3.1 Gen 2	--
介面選項	USB-A、 USB-C、 microUSB	僅限 USB-C	USB-A、 USB-C、 microUSB	僅限 USB-C

 

Hide mounted drive unity launch bar

Open dconf-editor, and navigate to the org > gnome shell > extensions > dash-to-dock page, switching the show-mounts toggle to the off position

vmware 3d acceleration

 Add this line to .vmx file:

mks.gl.allowBlacklistedDrivers = "TRUE"

Create desktop url link on gnome

1. Create file 士林區鄉鎮預報.desktop in /home/chiao/桌面/ contains:
   [Desktop Entry]
   Type=Application
   Terminal=False
   Name=士林區鄉鎮預報
   Icon=/usr/share/icons/hicolor/48x48/apps/firefox.png
   Exec=firefox http://www.cwb.gov.tw/V8/C/W/Town/Town.html?TID=6301100
   Categories=Application;
   
2. Right click icon "士林區鄉鎮預報", turn on "允許啟動"
3. Done
   

unzip encoding for big5

 unzip -I big-5 hw_157261.zip

 

bold math in beamer

 Add this to the preample:

\usefonttheme{professionalfonts}

unzip without folders (directories)

1.  Download 7z-exe: https://www.7-zip.org/
2.  Get into cmd window
3. cd Z:\Classes\109year\Semester2\Calculus\B\HW\HW7
4. md files
   
5. "C:\Program Files\7-Zip\7z.exe" e -ofiles hw_157264.zip
   

plot linestyle legend fontsize

The following octave commands:

plot(x,[ymat(:,[1,2,4])],{"k-.","k-","k:"},"linewidth", 2)

set(gca,'fontsize',26)

axis([1,6,-20000, 120000])

title(['Health People with minimum t-norm for dpercent=0.05'])  

xlabel('time interval (month)')

ylabel('People (in thousands)') 

yticklabels({"-20","0","20","40","60","80","100","120"})

legend ({"upper bound", "modal value", "lower bound" }, "location", "northeast")

grid on

produce the graph:

[SOLVED] Add nic for creating a subset, dns cannot works，networkmanager priority

sudo mv /etc/resolv.conf /etc/resolve.conf_orig

sudo ln -s /run/resolvconf/resolv.conf /etc/

 

cf: http://linux.vbird.org/linux_server/0230router.php

 

The solution for me is to set the network interface priority by setting the metric. 

Edit 網路連線 -> 有線連線2 -> IPv4 -> 路由(R)…，設定度量(Metric)為 99999 :

route -n shows:

chiao@kpchiao9600k:~$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.50.1    0.0.0.0         UG    101    0        0 eno1
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 enp3s0
192.168.0.0     0.0.0.0         255.255.255.0   U     100    0        0 enp3s0
192.168.0.0     192.168.0.1     255.255.255.0   UG    99999  0        0 enp3s0
192.168.50.0    0.0.0.0         255.255.255.0   U     101    0        0 eno1
192.168.51.0    0.0.0.0         255.255.255.0   U     0      0        0 vmnet1
192.168.188.0   0.0.0.0         255.255.255.0   U     0      0        0 vmnet8

ubuntu 18.04 /usr/lib/grub/i386-pc/modinfo.sh doesn't exist

I suspect this is caused by the wrong grub-install. So I do this:

apt purge grub-efi

apt purge grub2-common

 

Make sure grub-instal not exist:

ls  /usr/sbin/grub-instal

bash: /usr/sbin/grub-install: 沒有此一檔案或目錄

drupal error: Type Error: Argument 1 passed to Symfony\Component\HttpFoundation\ParameterBag::replace() must be of the type array,

 https://www.drupal.org/forum/support/installing-drupal/2020-12-06/unable-to-start-drupal-9-webpage-on-server

1. Open settings.php (/sites/default/settings.php) in any plain text editor. Add this line to the end of the file and save it:

   $settings['rebuild_access'] = TRUE;

2. Visit http://www.example.com/core/rebuild.php in your browser (where www.example.com is your site’s URL). After a short pause, you should be redirected to the home page of your site, and the cache should be rebuilt.
3. Open settings.php (/sites/default/settings.php) in a text editor. Find the line you added with $settings[rebuild_access], remove this line, and save the file.

 

Import sql error utf8mb4_0900_ai_ci

 https://pixelthis.gr/content/1273-unknown-collation-utf8mb40900aici

sed -i '' 's/utf8mb4_0900_ai_ci/utf8mb4_unicode_ci/g' db.sql 

System Dynamics

cf: /home/chiao/Fuzzy/Literature/SystemDynamics/15-988-fall-1998-spring-1999/contents/readings/teachers.pdf

 

  The level is an accumulation, or integration, or stock, to choose terminology from different fields. The rate is a flow that changes the amount in the level. The rate is defined by a “policy” statement that tells how the rate is controlled by the value of the level in comparison to a goal. All systems, everywhere, consist of these two kinds of concepts --levels and rates--and none other. 

 

Water in a bathtub is a level, the flow of water is the rate that changes the level. A person’s reputation is a level that is changed by the flow of good and bad actions by that person. The degree of frustration in a group is a level that gradually changes in response to surrounding pressures. 

At the point where a rate of flow is being determined, the condition of the system, as indicated by the values of the levels, is compared with a goal to determine control of the flow.  

 

https://en.wikipedia.org/wiki/System_dynamics 

 

A stock is the term for any entity that accumulates or depletes over time. A flow is the rate of change in a stock.