Application of the Discrete Total Time on Test Transform
SUN Jun?suo 1,CHENG Kan 2 (1.Dept. of Mathematics and Physics,,Anshan Institute of I.& S.Technology,Anshan 114002,China;2.Institute of Applied Mathematics,Academia Sinica,Bijing 100080,China)
The two formulas of the discrete TTT transform H * F(t)=∑∞i=0α iI B i (t) and * F(t)=∑∞i=0α iI i (t) are given to correspond with the discret life distribution.The relations and the analytic properties such as monotony,continuity and orthogonality are discussed.In addations,the discrete TTT graphic analysing method to the age replacement problem is given,the point P * N(t * N,H * N(t * N)) of the largest slope can be found on the discrete TTT graph and the optimal replaced age N * is determined by N *=F -1 (t * N).
【CateGory Index】： O158