Useful tips for everyday
What is covariance matrix used for? The covariance matrix provides a useful tool for separating the structured relationships in a matrix of random variables. This…
How is an SQL query evaluated? The EVALUATE operator is used in the WHERE clause of a SQL statement to compare stored expressions to incoming…
When should you close an option position? Buyers of an option position should be aware of time decay effects and should close the positions as…
What happened to the compass on Google Maps? Google removed the compass from the Android version of Google Maps in January 2019 due to reliability…
How do I override bootstrap style? For simple CSS Overrides, you can add a custom.css below the bootstrap.css create your own custom.scss. import Bootstrap after…
How to disable Auto Zoom in input ” text ” tag? I made an HTML page that has an tag with type=”text”. When I click…
How to display custom popups on Google Maps? This example displays a customized popup on the map. Alternatively, use a Marker or Info Window to…
Can a smart plug measure power consumption? With the Smart Plug Mini, you can monitor your energy use and schedule devices to power on/off whenever…
Is my Zpool encrypted? A final note: ZFS doesn’t actually encrypt your data directly with a supplied passphrase; it encrypts your data with a pseudo-randomly…
How do I turn off Apache on Mac? Mac OS X Start / Stop / Restart Apache Web Server To stop Apache web server, enter:…