1*752c3701SJeremy L Thompson !----------------------------------------------------------------------- 2*752c3701SJeremy L Thompson subroutine setup(ctx,q,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,& 3*752c3701SJeremy L Thompson & u15,u16,v1,v2,v3,v4,v5,v6,v7,v8,v9,v10,v11,v12,v13,v14,v15,v16,ierr) 4*752c3701SJeremy L Thompson real*8 ctx 5*752c3701SJeremy L Thompson real*8 u1(1) 6*752c3701SJeremy L Thompson real*8 u2(1) 7*752c3701SJeremy L Thompson real*8 v1(1) 8*752c3701SJeremy L Thompson real*8 w 9*752c3701SJeremy L Thompson integer q,ierr 10*752c3701SJeremy L Thompson 11*752c3701SJeremy L Thompson do i=1,q 12*752c3701SJeremy L Thompson w=u2(i)/(u1(i+q*0)*u1(i+q*3)-u1(i+q*1)*u1(i+q*2)) 13*752c3701SJeremy L Thompson v1(i+q*0)=w*(u1(i+q*2)*u1(i+q*2)+u1(i+q*3)*u1(i+q*3)) 14*752c3701SJeremy L Thompson v1(i+q*1)=-w*(u1(i+q*0)*u1(i+q*2)+u1(i+q*2)*u1(i+q*3)) 15*752c3701SJeremy L Thompson v1(i+q*2)=w*(u1(i+q*0)*u1(i+q*0)+u1(i+q*1)*u1(i+q*1)) 16*752c3701SJeremy L Thompson enddo 17*752c3701SJeremy L Thompson 18*752c3701SJeremy L Thompson ierr=0 19*752c3701SJeremy L Thompson end 20*752c3701SJeremy L Thompson !----------------------------------------------------------------------- 21*752c3701SJeremy L Thompson subroutine diff(ctx,q,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,& 22*752c3701SJeremy L Thompson & u15,u16,v1,v2,v3,v4,v5,v6,v7,v8,v9,v10,v11,v12,v13,v14,v15,v16,ierr) 23*752c3701SJeremy L Thompson real*8 ctx 24*752c3701SJeremy L Thompson real*8 u1(1) 25*752c3701SJeremy L Thompson real*8 u2(1) 26*752c3701SJeremy L Thompson real*8 v1(1) 27*752c3701SJeremy L Thompson real*8 du0,du1 28*752c3701SJeremy L Thompson integer q,ierr 29*752c3701SJeremy L Thompson 30*752c3701SJeremy L Thompson do i=1,q 31*752c3701SJeremy L Thompson du0=u1(i+q*0) 32*752c3701SJeremy L Thompson du1=u1(i+q*1) 33*752c3701SJeremy L Thompson v1(i+q*0)=u2(i+q*0)*du0+u2(i+q*1)*du1 34*752c3701SJeremy L Thompson v1(i+q*1)=u2(i+q*1)*du0+u2(i+q*2)*du1 35*752c3701SJeremy L Thompson enddo 36*752c3701SJeremy L Thompson 37*752c3701SJeremy L Thompson ierr=0 38*752c3701SJeremy L Thompson end 39*752c3701SJeremy L Thompson !----------------------------------------------------------------------- 40*752c3701SJeremy L Thompson subroutine diff_lin(ctx,q,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,& 41*752c3701SJeremy L Thompson & u15,u16,v1,v2,v3,v4,v5,v6,v7,v8,v9,v10,v11,v12,v13,v14,v15,v16,ierr) 42*752c3701SJeremy L Thompson real*8 ctx 43*752c3701SJeremy L Thompson real*8 u1(1) 44*752c3701SJeremy L Thompson real*8 u2(1) 45*752c3701SJeremy L Thompson real*8 v1(1) 46*752c3701SJeremy L Thompson real*8 du0,du1 47*752c3701SJeremy L Thompson integer q,ierr 48*752c3701SJeremy L Thompson 49*752c3701SJeremy L Thompson do i=1,q 50*752c3701SJeremy L Thompson du0=u1(i+q*0) 51*752c3701SJeremy L Thompson du1=u1(i+q*1) 52*752c3701SJeremy L Thompson v1(i+q*0)=u2(i+q*0)*du0+u2(i+q*1)*du1 53*752c3701SJeremy L Thompson v1(i+q*1)=u2(i+q*2)*du0+u2(i+q*3)*du1 54*752c3701SJeremy L Thompson enddo 55*752c3701SJeremy L Thompson 56*752c3701SJeremy L Thompson ierr=0 57*752c3701SJeremy L Thompson end 58*752c3701SJeremy L Thompson !----------------------------------------------------------------------- 59