I1. Ordinary differential equations (ODE's)

Functions
Sub	Derkfa (N As Long, F As LongPtr, T As Double, Y() As Double, Tout As Double, Tend As Double, RTol() As Double, ATol() As Double, Mode As Long, Info As Long, Optional Neval As Long, Optional Nstep As Long, Optional Naccept As Long, Optional Nreject As Long, Optional MaxIter As Long=0, Optional Cnt As Long=0, Optional Hinit As Double=0)
	Initial value problem of a system of first order ordinary differential equations (5(4)-th order Runge-Kutta-Fehlberg method)
Sub	Derkfa_r (N As Long, T As Double, Y() As Double, Tout As Double, Tend As Double, RTol() As Double, ATol() As Double, Mode As Long, Info As Long, TT As Double, YY() As Double, YYp() As Double, IRev As Long, Optional Neval As Long, Optional Nstep As Long, Optional Naccept As Long, Optional Nreject As Long, Optional MaxIter As Long=0, Optional Cnt As Long=0, Optional Hinit As Double=0)
	Initial value problem of a system of first order ordinary differential equations (5(4)-th order Runge-Kutta-Fehlberg method) (Reverse communication version)
Sub	Dopn43 (N As Long, F2 As LongPtr, T As Double, Y() As Double, Yp() As Double, Tout As Double, Tend As Double, RTol() As Double, ATol() As Double, Mode As Long, Info As Long, Optional Neval As Long, Optional Nstep As Long, Optional Naccept As Long, Optional Nreject As Long, Optional MaxIter As Long=0, Optional ErrCntl As Long=0, Optional Cnt As Long=0, Optional Hinit As Double=0, Optional Hmax As Double=0, Optional Fac1 As Double=0, Optional Fac2 As Double=0, Optional Safe As Double=0)
	Initial value problem of ordinary differential equations (4(3)-th order Runge-Kutta-Nystrom method) (for second order differential equations)
Sub	Dopn43_r (N As Long, T As Double, Y() As Double, Yp() As Double, Tout As Double, Tend As Double, RTol() As Double, ATol() As Double, Mode As Long, Info As Long, TT As Double, YY() As Double, YYpp() As Double, IRev As Long, Optional Neval As Long, Optional Nstep As Long, Optional Naccept As Long, Optional Nreject As Long, Optional MaxIter As Long=0, Optional ErrCntl As Long=0, Optional Cnt As Long=0, Optional Hinit As Double=0, Optional Hmax As Double=0, Optional Fac1 As Double=0, Optional Fac2 As Double=0, Optional Safe As Double=0)
	Initial value problem of ordinary differential equations (4(3)-th order Runge-Kutta-Nystrom method) (for second order differential equations) (Reverse communication version)
Sub	Derkf (N As Long, F As LongPtr, T As Double, Y() As Double, Tout As Double, RTol() As Double, ATol() As Double, Info As Long, Optional Mode As Long=0, Optional Cont As LongPtr)
	Initial value problem of a system of first order ordinary differential equations (5(4)-th order Runge-Kutta-Fehlberg method)
Sub	Derkf_r (N As Long, T As Double, Y() As Double, Tout As Double, RTol() As Double, ATol() As Double, Info As Long, TT As Double, YY() As Double, YYp() As Double, IRev As Long, Optional Mode As Long=-1, Optional Cont As LongPtr)
	Initial value problem of a system of first order ordinary differential equations (5(4)-th order Runge-Kutta-Fehlberg method) (reverse communication version)
Sub	DerkfInt (N As Long, T As Double, Y() As Double, Cont As LongPtr, Optional Info As Long)
	Initial value problem of a system of first order ordinary differential equations (5(4)-th order Runge-Kutta-Fehlberg method) (Interpolation for dense output)

Detailed Description

This is the group of I1. Ordinary differential equations (ODE's).