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.
Grayson Dolan. About Grayson Dolan is an American content creator for Vine, who rose to prominence along with his twin brother Ethan Dolan. Dating back to June 2015, he has had over 300,000 subscribers on Dolan Twins YouTube channel and gained more than 2.5 million followers on Vine.