2D computer graphics endowed with a self-rendering method—a procedure which assigns colors to the image pixels by an arbitrary algorithm. Complex models can be built by combining simpler objects, in the paradigms of object-oriented programming. In Euclidean geometry, a translation moves every point a constant distance in a specified direction. A translation can be described as a rigid motion: other rigid motions include rotations and reflections. A translation can also be interpreted as the addition of a constant vector to every point, or as shifting the origin of the coordinate system. A translation operator is an operator formula_1 such that formula_2 If v
Every Day Is a Holiday the chorus:<poem style="margin-left:2em"> We don't need a thing under the tree You give me all I need Every day is a holiday When you're the reason to celebrate Every day is a holiday When you're the reason</poem> The track contains a "'70s disco essence and a big ol' thumping bassline". It is a gospel-inspired dance track, and Perry's first Christmas song. The song was released on November 23, 2015. The same day, it was featured in a two-minute commercial for H&M's 2015 holiday campaign. It features Perry interacting with gingerbread men, presents, and large teddy bears while sporting various holiday-themed