Useful tips for everyday
How would a scalar multiplication be carried out for a matrix? Scalar and Matrix Multiplication. There are two types of multiplication for matrices: scalar multiplication…
What is http patch in Salesforce? The @HttpPatch annotation is used at the method level and enables you to expose an Apex method as a…
How do I share a folder between my iPhone and Mac? How to share a folder In the Finder, select iCloud Drive from the sidebar.…
What is the function of hierarchical select in Drupal? Description This module defines the “hierarchical_select” form element, which is a greatly enhanced way for letting…
What size are shop vac hoses? Shop-Vac® brand hoses will measure roughly 1.25″, 1.5″ or 2.5″. 1.25″ accessories fit vacs with a 1.25″ hose diameter.…
How do I get the current Unix timestamp in SQL? Get the current Unix timestamp (seconds from 1970-01-01T00:00:00Z) in SQL. MySQL: UNIX_TIMESTAMP() PostgreSQL: CAST(EXTRACT(epoch FROM…
What is the difference between fixed bias and voltage divider bias? Fixed bias circuits get their bias voltages from independently designed reference voltage sources (or…
How do I create a full text search in SQL Server? For a full-text index to be created on a table, the table must have…
Can you connect DisplayPort to another monitor? DisplayPort Multi-Stream Transport allows you to daisy chain monitors with DisplayPort 1.2 ports. Daisy chaining describes the ability…
Is there an app to identify sounds? Shazam (free; all smartphones): This app recognizes recorded songs—popular or not. You’re sitting in some restaurant, bar, office…