Definition of Greatest Integer Function. The greatest integer function of a real number x is represented by f(x) = [x] or |_x_|. For all real numbers x, the greatest integer function returns the largest integer less than or equal to x.
Daniel James Johnson, aka Danger Dolan, is an Australian YouTuber who specializes in trivia countdown videos narrated by animated characters.
The Dolan Twins, aka Ethan and Grayson Dolan, are two 16-year-olds who have taken the YouTube world by storm! 1  But not only are their hilarious vids wildly popular, the boys themselves are total eye candy. Find out more about these YouTube hunks below!