Useful tips for everyday
Can Pearson correlation be 1? Correlation coefficients are never higher than 1. A correlation coefficient of 1 means that two variables are perfectly positively linearly…
How does content caching work on a Mac? Mac content caching cuts down your Internet data usage and accelerates downloads on iPhone, iPad, Mac, Apple…
How strong are the magnets in the LHC? 8.3 tesla All the magnets on the LHC are electromagnets. The main dipoles generate powerful 8.3 tesla…
What is the difference between SQL NoSQL and NewSQL? The term NoSQL is categorizing databases as descriptive as ” No-SQL “. NoSQL is a comprehensive…
What are soft deletes, and how are they implemented? – Brent Ozar Unlimited® What Are Soft Deletes, and How Are They Implemented? Normally when you…
How are standard errors calculated for the survival function? The quantity is summed for numbers at risk (N t) and numbers of deaths (D t)…
Why are my photos blurry on iPhone camera roll? Blurry iCloud photos are the result of iPhone Storage Optimization. This feature saves iPhone storage by…
How to get file name from path in regex? First block ” (.+\\)*” matches directory path. Second block ” (.+)” matches file name without extension.…
What does an air traffic controller see? Air traffic controllers use radar, computers, or visual references to monitor and direct the movement of the aircraft…
What is the correct way to save the current directory to a variable in Linux? What is the correct way to save the current directory…