Useful tips for everyday
Can nginx be bottleneck? Why nginx can keep itself from being a bottleneck when serving as a load balancer. Can nginx be used as load…
How do I know if a Steam key is legit? The only way steam will tell you if a key is valid, aside from adding…
How do I reset my TightVNC admin password? If you would like to set the default password, run Start->Programs->TightVNC->Administration->Show Default Settings. What is view only…
Do you need to normalize data for PCA? Yes, it is necessary to normalize data before performing PCA. The PCA calculates a new projection of…
How do I create a parent-child relationship in Excel? Follow these steps: Open the Power Pivot window. Click Home > View > Diagram View. In…
How can I improve my iPhone 4 battery life? 10 Ways to Save Your iPhone 4 Battery Life Make sure you kill those apps that…
How do you know when a string ends? endsWith() The endsWith() method determines whether a string ends with the characters of a specified string, returning…
Is python range an iterator? In python range objects are not iterators. range is a class of a list of immutable objects. The iteration behavior…
How can I join two tables but only return rows that do not match? However, I only want to return the results from table 1…
How does a synchronous counter work? In synchronous counter, the clock input across all the flip-flops use the same source and create the same clock…