New users enjoy 60% OFF 167,742,297 stock photos online This is an extremely simple example, but it demonstrates level curves, and some following concepts very clearly So what are level curves showing?Given a function f(x,y), the set f(x,y) = c = const is called a contour curve or level curve of f For example, for f(x,y) = 4x2 3y2 the level curves f = c are ellipses if c > 0 Level curves allow to visualize functions of two variables f(x,y) Example For f(x,y) = x2 − y2 the set x2 − y2 = 0 is the union of the lines x = y and x = −y
Contour Lines Rodolphe Vaillant S Homepage