Function: noun
Date: circa 1721
: a point on a curve that separates an arc concave upward from one concave downward and vice versa
Function: noun
Date: circa 1721
: a point on a curve that separates an arc concave upward from one concave downward and vice versa
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012