Useful tips for everyday
Why are there multiple TTY? It’s not a linux specific thing, and ttys are not only used for virtual terminals. They’re also used e.g. when…
What is the difference between catkin build and catkin make? Important Distinctions between catkin_make and catkin build. Unlike catkin_make , the catkin command-line tool is…
How can we reduce the steady state error without changing the system type? This shows that proportional control can be used to alter the rise…
How is raster better than vector? Raster images are made up of tiny pixels, making them resolution dependent and best used for creating photos. This…
Is security patch update important? As you might expect from the name, these updates are also very important for security reasons. Some bugs present security…
How to combine two WHERE statements in SQL? The UNION operator is used to combine the result-set of two or more SELECT statements. Every SELECT…
What is the highest level in Bejeweled? The new Bejeweled Blitz Ranks give you the chance to rank-up through 131 levels of gem-matching prowess. You’ll…
How do I activate new reactions on Facebook? Add a Reaction: Hold down the like button on mobile (or hover over the like button on…
Why is MS Word opening at startup? In the Fall update, Microsoft changed this so that any apps that were open or are regularly used…
How do you extract cells from a polygon? Extracts the cells of a raster based on a polygon. To extract based on a polygon in…