Useful tips for everyday
How can you tell if a file is closed? Try to do any file operation like lseek on the file descriptor. If it returns -1…
Is there a way to install Python on QGIS? In Windows, Python is not installed by default, and QGIS installs his own version. To install…
What do I do when my Mac says Bluetooth not available? We’re here to help. Bluetooth Not Available? Reboot Your Mac. Check Your Mac’s Bluetooth…
What does multiple object tracking measure? Multiple Object Tracking, or MOT, is an experimental technique used to study how our visual system tracks multiple moving…
Does Lubuntu 18.04 support 32bit? Whilst packages were upgraded the entire life of 19.04, it’s now EOL/end-of-life (builds stopped in the beta cycle of eoan…
How to set up sales prices and discounts for customers? When you open the Sales Prices and Sales Line Discounts pages from a specific customer,…
What are recursive systems IIR )? Recursive and Nonrecursive Discrete-Time Systems This is a recursive system which means the output at time n depends on…
How do I enable image search? Enable image search On the Custom Search home page, click the search engine you want. Click Setup, and then…
What is the limit of optical fiber? Typical transmission speed and distance limits are 100 Mbit/s for distances up to 2 km (100BASE-FX), 1 Gbit/s…
How to count left join rows in SQL? It seems obvious that I need to do a left join on the MESSAGE table, but how…