nag_ode_ivp_rk_step_revcomm (d02pgc) Example Program Data
   Nag_RK_4_5                     : method
   Nag_ErrorAssess_on             : errass
   0.0  6.28318530717958647692    : tstart, tend
   0.0  1.0                       : yinit(1:n)
   0.0                            : hstart
   1.0e-8  1.0e-8                 : thres(1:n)