English word pseudoconcave comes from English concave, English pseudo- (False, not genuine, fake.)
| Dictionary entry | Language | Definition |
|---|---|---|
| concave | English (eng) | (functional analysis, not comparable, of a real-valued function on the reals) satisfying the property that all segments connecting two points on the function's graph lie below the function.. (geometry, not comparable, of a polygon) not convex; having at least one internal angle greater than 180 degrees... Curved like the inner surface of a sphere or bowl. Hollow; empty (manufacturing) An [...] |
| pseudo- | English (eng) | False, not genuine, fake. |
| pseudoconcave | English (eng) | (mathematics) (said of a function) differentiable and decreasing in any direction where it has a negative directional derivative. |