π és un nombre irracional, és a dir, la seva part fraccionària té un nombre de xifres infinit i a més no té cap període. Per fer càlculs pràctics s'agafa un valor simplificat, com per exemple 3,14159265. El nombre π, a més d'aparèixer en la fórmula de la longitud de la circumferència, apareix a totes les equacions matemàtiques derivades d'aquesta: la superfície del cercle, la superfície i el volum de l'esfera... i també en nombroses equacions de

Firefox's Built-in Tab Scrolling Firefox automatically shrinks tab widths when there are too many tabs to fit in the tab bar. If the tabs become too narrow, Firefox will add a scrollbar to the tab bar, allowing you to scroll through them. This behavior is enabled by default, and it is not possible to change this setting in the configuration

These days, New Technology File System or NTFS is the most popular data format being used in most flash drives. But note that, most pen drives available in the market still doesn’t come formatted in NTFS by default. Instead they come in FAT32 format and you must have wondered why the hell does they still come in last gen format? It’s because most of the multimedia devices that we use in our daily life still doesn’t support NTFS. Even our good old Android doesn’t. But there’s a way

If you use a # hashtag on twitter, it marks the tweet with that topic. They are used for topics. If you make a tweet about birds, you would say #birds. On the other hand if you want to send a tweet that's to a particular Twitter user or other person in the world, then you use an @ symbol to say the tweet is addressed to that person. I have used it on Facebook if there is a post, and a whole bunch of comments, and I want to respond to one of the comments, but it's not the most recent comment. @