PLANE CURVES A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site kappa curve Also known as Gutschoven's curve, after Gérard van Gutschoven (1615-1668) who first studied it around 1662. The kappa curve, which resembles the Greek letter kappa (κ), was also investigated by Isaac Newton and, some years later, by Johann Bernoulli. It is given by the Cartesian equation: y2(x2 + y2) = a2x2 Related category    • PLANE CURVES Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP