Most emotional note in C Major

Posted on by phsamuel

Ab. And consequently we could replace chords G and F with Ab and Fm. And replacing Dm with Dm7b5 or Db can sound great as well. Update:  Some songs with Ab (VIb)  Butterfly: C Em F Ab Bb C  (kind of cool here) Remember me: G Eb G  

ROS package managing

Posted on by jiseung

I am playing with ROS recently. Actually using it is not hard. But I don’t understand why there is not even a reasonable tutorial regarding package managing. I went through an entire online course not even realizing that managing tools such as wstool and rosinstall_generator exist. (I initially git clone one package at a time…

Chrome bug on Ubuntu

Posted on by phsamuel

Chrome becomes very unstable on my Ubuntu laptop recently. Disable Out of Blink CORS seems to fix the problem for now.

Kelly criterion and the danger of expectation

Posted on by phsamuel

Came across Kelly criterion with 李永樂老師’s video. The proof is indeed rather elementary. However, it also puzzled me when I tried to derive it myself. It seems that the argument is completely okay. Hopefully, someone can correct me. Update: This is a good lesson learned. Yes. Have to be really careful in terms of expectation….

Digging hole

Posted on by phsamuel

Another lesson of not to do anything when I am tired. I was thinking to try to sync my dpt-rp1 digital paper with a newly installed windows 10. I didn’t pay attention and accidentally upgrade the firmware. Of course, it is a horrible mistake since I rooted that earlier. It looks like I have bricked…

peap ubuntu bug

Posted on by phsamuel

I have been using the school guest wifi for a while. But today, it doesn’t work and tries to connect the eduroam wifi. Then just realize there is a nasty bug in ubuntu for that. It seems to be affecting multiple distribution. Trying to downgrade wpa_supplicant following this. Cannot downgrade libssl to 4.14 but to…