http://i2p-javadocs.i2p/net/i2p/crypto/eddsa/math/GroupElement.Representation.html
P1P1: Completed representation $((X:Z), (Y:T))$ satisfying $x=X/Z, y=Y/T$. PRECOMP: Precomputed representation $(y+x, y-x, 2dxy)$. CACHED: Cached representation $(Y+X, Y-X, Z, 2dT)$ Nested Class Summary Nested classes/interfaces inherited from class java.lang. Enum Enum.EnumDesc < E extends Enum < E >> Enum Constant Summary Enum Constants Enum Constant Description CACHED Cached: $(Y+X,Y-X,Z,2dT)$ P1P1 Completed ($P \times P$):...