Useful tips for everyday
What is the most appropriate measure of spectral efficiency for a cellular system? In digital wireless networks, the system spectral efficiency or area spectral efficiency…
How do you make a shape fill transparent? Make a shape transparent Select Insert > Shapes. Select a shape from the drop-down gallery and then…
How do I edit an apt repository list? The main Apt sources configuration file is at /etc/apt/sources. list. You can edit this files (as root)…
Does the order of WHERE clause matter in SQL? No, that order doesn’t matter (or at least: shouldn’t matter). Any decent query optimizer will look…
How do I Print a custom size on a Mac? Create a custom paper size for printing on Mac In an app on your Mac,…
How to display custom picklist field in Visualforce? Sometime there is requirement to display custom picklist field in visualforce page. If we have a picklist…
How do you calculate prediction bias? To use the more formal terms for bias and variance, assume we have a point estimator ˆθ of some…
What program do I need to digitally sign a PDF? Adobe Acrobat Reader, the most popular PDF viewing software, has an electronic signature method that…
How do I convert MP3 to CDG? Select “File,” then “Save As” from the top menu bar. Choose “CDG (CD+G)” in the “File Type” field.…
Can a website track your clicks? When someone clicks on your website, whether it’s a link or form field or something else, it sends out…