Useful tips for everyday
How do you find the angle between three coordinates? If the points are (say) P2(1,0), P1(0,0), P3(0,1) then the angle P3-P1-P2 is conventionally positive (PI/2)…
How do I open the operation panel on my Canon printer? The operation panel consists of the ON button (A) and touch screen (B). Touch…
How do you create tileset in Mapbox Studio? Unlike the tilesets you upload, the Mapbox Streets and Mapbox Terrain tilesets have layers that group certain…
How do you find the maximum product of two numbers? (Generally, for two numbers whose sum is n, the largest product is given by (n/2)2,…
Can pilots sleep while flying? Do pilots sleep in flight? The simple answer is yes, pilots do and are allowed to sleep during flight but…
Should hyperlinks be underlined? Simply put, there’s no guessing when links are presented consistently. Links are easy to find because users understand that underlined text…
How can I tell if a file is DOS? Detect file format with grep. ^M is Ctrl-V + Ctrl-M. If the grep returns any line,…
What is a Facebook retargeting pixel? The Facebook Pixel, also known informally as the Facebook retargeting pixel, is a snippet of code you can insert…
Can you store audio in MySQL? Dan Craven answered the first half of your question, and I agree that it’s better to store the path…
Can you tell credit card type from number? When accepting credit card numbers over the phone from customers, you can easily identify the type of…