Background

My churches are going green.

Problem

→ I downloaded a PDF from Haute-Garonne’s government site, filled in the form and saved it on a USB key. Then I printed it at a Konica Minolta bizhub photocopier yesterday.

Problem

I would like to submit Flying Grizzly’s form. I filled in every blanks and then I clicked the “submit” button below. I was greeted with a MISSING_REQUIRED_FIELDS error within a second.

{
    "success":false,
    "data":["replying_to"],
    "rawError":{
        "_smErrorCode":"MISSING_REQUIRED_FIELDS",
        "data":["replying_to"]
    },
    "errorCode":"MISSING_REQUIRED_FIELDS"
}

Discussion

The error code suggested that the form fields sent should be inspected.

Fixed issue #142

Two weeks ago, Google Webmasters complained about the broken urls in this blog’s Tags page. This was reported by Joakim Vivas as issue #142 half a year ago. Pascal had submitted pull request #165 to fix this. However, he self-closed his PR.

Since the last commit by Michael Romero, Beautiful Hugo’s owner, was five months ago, it seems that he has abandonned his project. Therefore, I used Kaushal Modi’s solution to fix this at commit ff536782.

Goal

To enable Chinese and Japanese input on (X)ubuntu 18.04 laptops .

My choices of input method

On my old Fujitsu laptop running Xubuntu, I’ve chosen Fcitx. This turns out to be a difficult choice when I install Rime.

Japanese input

Thanks to ひゃまだ, I’ve managed to switch between difference modes in Mozc.

Problem

After installing NPM throught Ubuntu’s default apt-get manager, I got permission errors. Though sudo can solve the problem, that’s not the right way in principle because NPM is supposed to hold different versions of Node.js packages for testing. It’s insecure to execute npm with sudo priviledges.

Solutions

1. Install Zsh to improve efficiency

2. Grab Oh My Zsh to instal NVM as its plugin.

    sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"
   

3. Use NVM (NPM Version Manager) to manage NPM.

   [Read More]

Background: 🈶 ⛪ → 🌿

→ 📧 In the recent decade, organizations are replacing courrier with email. The reason is two-folded. 🌿 First, the later is more environmentally-friendly. 📨 Second, the later delivers the content to the recipient quick as a flash.

📧 📎 When one sends an email, one sometimes wants to attach a file to an email. If one has to sign a paper document and send it by email, then one will probably need a scanner. (Despite the emergence of scanning apps on mobile devices, the quality of a scanner is normally better since the page is flattened during the scan.)

Main ideas

• – Ideal energy range for storage: 40%–80%
• The biggest enemy of electronic parts is heat .
• Avoid overchanging and unplug AC adapter when charging is complete. In particular, don’t leave a fully charged laptop connected to power supply. This can reduce the lifespan of the battery.
• Avoid deep discharges: recharge the laptop battery when its enery level drops to 40%.
• Reduce unnecessary programs running in background.
• If your hardware vendor supports Linux drivers for batteries, set the charging thershold to 80%.
  • Some Lenovo Thinkpads can benefit from those drivers.
  • Other vendors like Fujitsu offers such drives for M$ Windows only.

External URLs

1. Life Hacker
2. Omg! Ubuntu!

Background

Despite my experience in Vim, the multi-cursor functionality in Sublime Text 3 has seduced my to change my editor.

Unlike Vim, a nonempty new line at the end of Sublime Text 3 file buffer causes the file to end without a newline character. In fact, it’s a POSIX standard to include a newline character at the EOL (end of file). (c.f. No Newline at End of File)

Problem

Unaware of the above POSIX standard and Sublime Text 3 convention, I have edited many lines of code in the repository for this blog and the one for my custom Beautiful Hugo. These edited files were almost everywhere in these repositories, and they polluted their remote counterparts on GitLab .

This isn’t a substitute for books .

Reminder

• $A \preceq B$: $A$ can be “injected” into $B$.
• $A \sim B$: $A$ and $B$ share the same cardinality.
• $A \prec B$: $A$ can be “injected” into $B$, but it’s “smaller” than $B$.
• A finite set can be “counted” from one to some nonnegative integer.
• Infinite is the “antonym” of finite.

Wolf’s proof

When I first saw this proof in Robert S. Wolf’s Proof, Logic and Conjecture: The Mathematician’s Toolbox, I gave it up since it wasn’t as intuitive as the statement.

Motivation

One loves adding colors to his/her life by adding stunning photos to his/her social media profile. However, due to various constraints, such as weather, budget and time, it’s possible that the photos taken look dark and somber.

Despite a suboptimal choice of camera angle, a right tool enables you to take the best out of the photo. Let’s go GIMPing.