Warcraft premiered in 3D in June 2016.
In mathematics , a cyclic order is a way to arrange a set of objects in a circle .. mathematics. mathematics. circle. circle. set. set ( mathematics ). Unlike most structures in order theory , a cyclic order is not modeled as a binary relation , such as '' '' .. order theory. order theory. binary relation. binary relation. One does not say that east is `` more clockwise '' than west .. Instead , a cyclic order is defined as a ternary relation , meaning `` after , one reaches before '' .. ternary relation. ternary relation. For example , -LSB- June , October , February -RSB- .. A ternary relation is called a cyclic order if it is cyclic , asymmetric , transitive , and total .. ternary relation. ternary relation. Dropping the `` total '' requirement results in a partial cyclic order .. partial cyclic order. partial cyclic order. A set with a cyclic order is called a cyclically ordered set or simply a cycle .. set. set ( mathematics ). Some familiar cycles are discrete , having only a finite number of elements  : there are seven days of the week , four cardinal directions , twelve notes in the chromatic scale , and three plays in rock-paper-scissors .. finite number. Finite set. days of the week. days of the week. chromatic scale. chromatic scale. rock-paper-scissors. rock-paper-scissors. In a finite cycle , each element has a `` next element '' and a `` previous element '' .. element. element ( mathematics ). There are also continuously variable cycles with infinitely many elements , such as the oriented unit circle in the plane .. circle. circle. unit circle. unit circle. Cyclic orders are closely related to the more familiar linear orders , which arrange objects in a line .. line. line ( geometry ). Any linear order can be bent into a circle , and any cyclic order can be cut at a point , resulting in a line .. circle. circle. linear order. linear order. line. line ( geometry ). These operations , along with the related constructions of intervals and covering maps , mean that questions about cyclic orders can often be transformed into questions about linear orders .. Cycles have more symmetries than linear orders , and they often naturally occur as residues of linear structures , as in the finite cyclic groups or the real projective line .. line. line ( geometry ). real projective line. real projective line