Points where concavity changes (between concave and convex) are inflection points. The dermal denticles are squarish and flattened, with a slight central concavity and raised corners. Instead, they can change concavity around vertical asymptotes or discontinuities. The inflection point of a function is where that function changes concavity. In inflammations the interdental papilla loses its concavity. This concavity bends down towards the scapular widening. It uses an air pulse to deform the cornea into a slight concavity. The most depressed aspect of this concavity is termed the umbo (). The plantar arch flattens, the solar concavity decreases in depth and heels spread. The cornu calcaris was triangular, with a concavity in the middle, and was long. The utility function for perceived gains has two key properties&colon; an upward slope, and concavity. This matrix is composed of three consecutive vertices which are being examined for concavity. This is the concavity of the logarithm function. Polynomial graphs are analyzed in calculus using intercepts, slopes, concavity, and end behavior. It has a crescent shape and a lower cup-like concavity.