The square root of 2, for example, is 1.41421356 and so on. Symbolically, the square root sign looks like a division sign with an extra hook, although on computers, the square root sign often ...

In 2018, 157 new emoji – including superheroes, skateboards, bagels and toilet paper – hit iOS platforms like the iPad and iPhone. And that's to say nothing of the thousands of existing emoji ...