NUMAL Section 5.2.1.1.2.1

BEGIN SECTION : 5.2.1.1.2.1 (February, 1979)

SECTION 5.2.1.1.2.1 CONTAINS FOUR PROCEDURES FOR INITIAL VALUE PROBLEMS
FOR SECOND ORDER ORDINARY DIFFERENTIAL EQUATIONS.

Section 5.2.1.1.2.1.A:
A.  RK2 SOLVES AN IVP FOR A SINGLE SECOND ORDER ODE BY MEANS OF A
    5-TH ORDER RUNGE-KUTTA METHOD.

Section 5.2.1.1.2.1.B:
B.  RK2N SOLVES AN IVP FOR A SYSTEM OF SECOND ORDER ODE'S BY MEANS
    OF A 5-TH ORDER RUNGE-KUTTA METHOD

Section 5.2.1.1.2.1.C:
C.  RK3 SOLVES AN IVP FOR A SINGLE SECOND ORDER ODE WITHOUT FIRST
    DERIVATIVE. RK3 IS BASED ON A 5-TH ORDER RUNGE-KUTTA METHOD.

Section 5.2.1.1.2.1.D:
D.  RK3N SOLVES AN IOVP FOR A SYSTEM OF SECOND ORDER ODE'S WITHOUT
    FIRST DERIVATIVE. RK3N IS BASED ON A 5-TH ORDER RUNGE-KUTTA METHOD.