Useful tips for everyday
Does linear regression need cross validation? (Cross-validation in the context of linear regression is also useful in that it can be used to select an…
How do I count NULL values in Oracle SQL? It can be accomplished in Oracle just in 1 row: SELECT COUNT(NVL(potential_null_column, 0)) FROM table; Function…
How do I pass SSL with curl? You need to pass the -k or –insecure option to the curl command. This option explicitly allows curl…
How do I test a rails controller? The currently accepted way to test rails controllers is by sending http requests to your application and writing…
Can you put tutorials on your resume? Yes you can include them in your resume if you can explain every single step and ideology behind…
Can you cut dovetails with a jigsaw? These dovetails are an example of how quick and precise a jigsaw can be. It took me about…
What are the applications of graph theory? Graph theory is used to find shortest path in road or a network. In Google Maps, various locations…
Does the Galaxy S4 have a thermometer? The S4 includes a barometer, thermometer, and hygrometer (to measure humidity)—the first major smartphone to do so. Is…
How do you solve a tridiagonal matrix? The system can be efficiently solved by setting Ux = ρ and then solving first Lρ = r…
What is WAN core router? As stated earlier WAN Core typically consists of connecting large corporate islands such as MANs or large campuses. These are…