Useful tips for everyday
How can we resolve problems in software development process? In general, I believe the process of solving a software development problem can be divided into…
What is Bumblebee service? From Bumblebee’s FAQ: Bumblebee is an effort to make NVIDIA Optimus enabled laptops work in GNU/Linux systems. Such feature involves two…
When to use upsert or update in PostgreSQL? The idea is that when you insert a new row into the table, PostgreSQL will update the…
How do you reference in R? citation() To cite R in publications use: R Core Team (2013). R: A language and environment for statistical computing.…
Why does my MacBook air take so long to shut down? Hanging software is another common reason why your Mac takes too long to shut…
Can I remove www from my website? Most websites on Apache servers are created to use the “www” prefix by default. When removing “www” it’s…
What are the different algorithms to compute the nearest neighbors? The k-nearest neighbors (KNN) algorithm is a simple, supervised machine learning algorithm that can be…
What is linear transformation in matrix? Definition. A plane transformation F is linear if either of the following equivalent conditions holds: F(x,y)=(ax+by,cx+dy) for some real…
What are the disadvantages of 2FA? Cons of two-factor authentication Time-consuming. Time may be an absolute metric, but it’s also relative. Cost. Like time, cost…
Where do I find user alerts on my website? On the Site Actions menu , select Site Settings, and then select Modify All Site Settings.…