Not enough input arguments. The first argument, DDEFUN, must be a function handle. The second argument, DELY, must be a function handle or a constant vector. The third argument, DELYP, must be a function handle or a constant vector. HISTORY has an invalid data type. Refer to the help for DDENSD for a list of allowed data types for HISTORY. HISTORY structure must be produced by DDENSD. When using HISTORY structure, DDENSD must continue from last point reached. Mixture of single and double data for ''t0'', ''y0'', ''y(dy(t0,y0))'', ''yp(dyp(t0,y0))'' and ''f(t0,y0,dy0,dyp0)'' in call to DDENSD. JUMPS option is not available in DDENSD. Solve the problem by restarting at each entry of JUMPS. Option ''RelTol'' must be a positive scalar. DDENSD is intended only for modest accuracy. RelTol has been increased to {0}. Failure at t={0} with solution delay DELY less than T0. When solving initial-value NDDE, DELY must remain greater than or equal to T0. Failure at t={0} with derivative delay DELYP less than T0. When solving initial-value NDDE, DELYP must remain greater than or equal to T0. Failure at t={0} with derivative delay DELYP greater than T. DELYP can be equal to T only for initial-value NDDEs at T=T0. In all other cases, DELYP must be less than T. Failure at t={0} with derivative delay DELYP equal to T. DELYP can be equal to T only for initial-value NDDEs at T=T0. In all other cases, DELYP must be less than T. Failure at t={0} with derivative delay DELYP equal to T, for T>T0. DELYP can be equal to T only for initial-value NDDEs at T=T0. In all other cases, DELYP must be less than T.