Useful tips for everyday
How do you open a new line for text below above cursor change in Unix? Just pressing o then Esc whenever you need it isn’t…
What is roll pitch and yaw? Pitch is the rotation of a vehicle about the transverse axis. Roll is the rotation of a vehicle about…
How do you handle dynamic objects? Here are some methods that you can use to identify such dynamic web elements in your web page. Absolute…
What is an Oracle in optimization? In mathematical optimization, oracle complexity is a standard theoretical framework to study the computational requirements for solving classes of…
What lines must be used in perspective drawings? Perspective drawings have a horizon line, which is often implied. This line, directly opposite the viewer’s eye,…
How do you make a scratch layer permanent in Qgis? To avoid data loss when closing a project with temporary scratch layers, you can save…
How do I run ifconfig on CentOS 7? The installation of Ifconfig on CentOS 7 (or any CentOS servers that are missing the utility) is…
What is the best practice to avoid malware? Here are 10 tips on how to prevent malware from infecting your computer, keeping your hardware safe.…
What is a good flyback diode? Well for a short period of time, whatever current was flowing in the inductor will be flowing in the…
What is cardinality and selectivity in Oracle? oracle oracle11g cardinality. According to this: Selectivity is the value between 0 and 1, and it is the…