Up-Pointing Triangle with Right Half Black

The Up-Pointing Triangle with Right Half Black at U+25EE is a geometric symbol showing an upward triangle split vertically, with its right side filled. It is part of the Geometric Shapes block, where it sits among other half-filled triangles and simple diagram symbols rather than letters or punctuation. In real use it is most often a technical or layout marker: a compact icon for “up,” “increase,” “expand,” or “next state,” with the half-black fill adding a distinction from a plain triangle. It may appear in legends, printed forms, UI mockups, map-like keys, or data displays where several triangular variants need separate meanings. Mathematical and engineering documents can use it as a custom marker in diagrams, truth tables, or annotated figures, but it has no widely fixed mathematical meaning on its own. Because it is a relatively specialized shape, font support and visual style vary more than for common arrows or triangles, so it is best used where the exact glyph is not the only way to convey essential information.