Programming – Fajrul's Blog

Batch processing ffmpeg in folder

for %i in (*.MOV) do ffmpeg -i "%i" -vcodec libx264 -crf 24 "%~ni.mp4" Untuk mengubah file video .MOV dari iPhone ke .mp4 normal, kalo pas lagi mau edit video di Premiere Pro. Karena kalo edit .MOV (x265) kadang error.… Baca selengkapnya

Working with Manim (again)!

Some time ago, I decided to stop learning manim for a while. It just uhm… too complicated. It can be better if I found another visualization tool that easier to use. BUT… While watching videos on Youtube, I meet again with the video of 3Blue1Brown, and I was bewitched by the beauty of the animation… Baca selengkapnya

Moving to Visual Studio Code (It’s Better than PyCharm)

The first time I focused to learn programming (about two months ago), I used PyCharm as my IDE (Integrated Development Environment). There is no reason for that. I used PyCharm simply because of the tutorial I watched at that time use PyCharm. Therefore I do that. But after using PyCharm for a while, it… Baca selengkapnya

Three-Body Problem Visualization Using Julia

The three-body problem is the problem of taking the initial positions and velocities of three-point masses and solving for their subsequent motion according to Newton’s laws of motion and Newton’s law of universal gravitation (Wikipedia). I just knew about three-body problem recently.… Baca selengkapnya

How to Install and Launch Jupyter Notebook from Terminal

Jupyter Notebook is unique tool for web-based interactive programming environment. It can execute python command line by line with interactive displayed result. Google Colaboratory is actually using this Jupyter Notebook format and I found it is very interesting. So I tried to use it on my laptop.… Baca selengkapnya