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SUBROUTINE PSTA(DELTAY,BI,CA,ALPH,THI,AJJL)
DIMENSION A(3,3),AI(6),AJ(6),H(3,3),EK(6),G(3,3),GI(3,3),Q(3,3)
DIMENSION DELTAY(1),BI(1),CA(1),ALPH(1),THI(13)
DIMENSION P(3,6),QI(3,3)
COMPLEX PC(3)
COMMON /PACKX/ ITI,IT0,II,NN,INCR
COMMON /AMGMN/ MCB(7),NROW,ND,NE,REFC,EMACH,RFK
COMMON /PSTONC/ NJJ,NMACH,NTHRY,NTHICK,NALPHA,NXIS,NTAUS,NSTRIP,
* SECLAM
COMMON / CONDAS / PI,TWOPI,RADG,DEGRA
DATA A /9*0.0/ , H /9*0.0/
BREF = REFC * .5
RFC = RFK/BREF
II = NROW +1
NN = NROW
C
C BUILD AJJL FOR EACH STRIP
C
DO 200 I=1,NSTRIP
B = BI(I)
CONST = 8.0 * DELTAY(I) * (RFC * B)**2
A(1,1) = -1.0
A(2,1) = -.5 * B
A(2,2) = B
A(3,3) = B
H(1,1) = -1.0
H(1,2) = A(2,1)
H(2,2) = B
H(3,3) = B
ALPHA = ALPH(1)
IF(NALPHA.NE.1 ) ALPHA = ALPH(I)
ALPHA = ALPHA * DEGRA
ALPHA2 = ALPHA*ALPHA
N = 2
IF(CA(I) .NE. 0.0 ) N = 3
IF( NTHICK .EQ. 0 ) GO TO 20
DO 10 J=1,6
AI(J) = THI(J)
AJ(J) = 0.0
IF(N .EQ. 3 ) AJ(J) = THI(J+6)
10 CONTINUE
ZETAH = 1.0
IF( NXIS .EQ. 1 ) ZETAH = THI(13)
IF( NXIS.GT.1) ZETAH = THI(I+12)
GO TO 70
20 IF( NTAUS .NE. 1 ) GO TO 30
TAU = THI(1)
TAUH = THI(2)
TAUT = THI(3)
IF( N .EQ. 2 ) TAUT = 0.
T = TAUH-TAUT
ZETAM = THI(4)
ZETAH = THI(5)
GO TO 50
30 K = (I-1) * 3+1
TAU = THI(K)
TAUH = THI(K+1)
TAUT = THI(K+2)
IF( N .EQ. 2 ) TAUT = 0.
T = TAUH - TAUT
K = (I-1)*2+1 + 3*NSTRIP
ZETAM = THI(K)
ZETAH = THI(K+1)
DO 40 J=1,6
40 AJ(J) = 0.
50 IF(N .EQ. 2 ) ZETAH = 1.0
IF( N .EQ. 2 ) GO TO 60
AJ(1) = -.5 * T
AJ(2) = -.25*T*(1.0+ZETAH)
AJ(3) = -(1./6.)*T*(1.+ZETAH+ZETAH*ZETAH)
AJ(4) = .25*T*T/ (1.-ZETAH)
AJ(5) = .125*T*T*(1.0+ZETAH) / (1.-ZETAH)
AJ(6) = (1./12.)*T*T*(1.+ZETAH+ZETAH*ZETAH) / (1.-ZETAH)
60 TS = TAU-TAUH*(TAU-TAUH)
AI(1) = TAUH*.5 + AJ(1)
AI(2) = -(TAU/3.)*ZETAH + (TAUH/6.) * (2.*ZETAH+ZETAM) + AJ(2)
AI(3) = -(TAU/12.)*ZETAH *(3.*ZETAH+2.*ZETAM) + (TAUH/12.) *
* (3. *ZETAH*ZETAH + 2.*ZETAH*ZETAM+ZETAM*ZETAM) + AJ(3)
AI(4) = (TAU*TAU/(3. *ZETAM)) + (1./3.)*TS*(ZETAH-ZETAM) + AJ(4)
AI(5) = (TAU*TAU/12.) + (1./12.)*TS*(3.*ZETAH + ZETAM) /
* (ZETAH-ZETAM) + AJ(5)
AI(6) = (TAU*TAU/30.) * ZETAM + (1./30.)*TS*(6.*ZETAH*ZETAH +
* 3.*ZETAH*ZETAM + ZETAM*ZETAM) / (ZETAH-ZETAM) + AJ(6)
70 EMS = EMACH*EMACH
SECS = SECLAM*SECLAM
IF( NTHRY .NE. 0 ) GO TO 80
CBAR1 = 1.
CBAR2 = (1.4+1.)/4.
GO TO 90
80 CBAR1 = EMACH / SQRT(EMS-SECS)
CBAR2 = (EMS*EMS*(1.4+1.)- 4.*SECS*(EMS-SECS)) /(4.*(EMS-SECS)**2)
90 CBAR3 = (1.4+1.) / 12.
EK(1) = (1./EMACH ) *(CBAR1+2.*CBAR2*EMACH*AI(1)
* + 3.*CBAR3*EMS*(AI(4)+ALPHA2))
EK(2) = (1./EMACH) * (CBAR1+4.*CBAR2*EMACH * AI(2)
* + 3.*CBAR3*EMS*(2.*AI(5)+ALPHA2))
EK(3) = (4./(3.*EMACH)) * (CBAR1+6.*CBAR2*EMACH*AI(3)
* + 3.*CBAR3*EMS*(3.*AI(6)+ALPHA2))
IF( N .EQ. 3 ) GO TO 100
EK(4) = (1./EMACH) * (CBAR1*(1.-ZETAH) + 2.*CBAR2*EMACH*AJ(1)
* +3.*CBAR3*EMS*AJ(4) + ALPHA2*(1.-ZETAH))
EK(5) = (1./EMACH) * (CBAR1*(1.-ZETAH*ZETAH) + 4.*CBAR2*EMACH*
* AJ(2) + 3.*CBAR3*EMS*(2.*AJ(5)+ALPHA2*(1.-ZETAH*ZETAH)))
EK(6) = (4./(3.*EMACH))*(CBAR1*(1.-ZETAH**3) + 6.*CBAR2*EMACH*
* AJ(3) + 3.*CBAR3*EMS*(3.*AJ(6)+ ALPHA2*(1.-ZETAH**3)))
E1K = 1.0/(RFC *B)
E1KS = E1K*E1K
G(1,1) = 0.
G(1,2) = -EK(1) * E1KS
G(2,1) = 0.
G(2,2) = -EK(2) * E1KS
GI(1,1) = -EK(1) * E1K
GI(1,2) = -EK(2) * E1K
GI(2,1) = GI(1,2)
GI(2,2) = -EK(3) * E1K
IF( N .EQ. 3 ) GO TO 100
G(1,3) = -EK(4) * E1KS
G(2,3) = -EK(5) * E1KS
G(3,1) = 0.
G(3,2) =-(EK(5)-2.*EK(4)*ZETAH) * E1KS
G(3,3) = G(3,2)
GI(1,3) = -(EK(5)-2.*EK(4)*ZETAH) * E1K
GI(2,3) = -(EK(6)-2.*EK(5)*ZETAH) * E1K
GI(3,1) = GI(1,3)
GI(3,2) = -(EK(6) -2.*EK(5)*ZETAH) * E1K
GI(3,3) = -(EK(6)-4.*EK(5)*ZETAH+4.*EK(4)*ZETAH*ZETAH) * E1K
C
C MATRICES BUILT TIME TO MULTIPLY
C
100 DO 110 K=1,N
DO 110 L=1,N
Q(K,L) = 0.
QI(K,L) = 0.
DO 110 M1=1,N
Q(K,L) = Q(K,L) + A(K,M1) * G(M1,L)
QI(K,L) = QI(K,L) + A(K,M1) * GI(M1,L)
110 CONTINUE
N2 = 2*N
DO 130 K=1,N
DO 130 L=1,N2,2
IT = L/2+1
P(K,L) = 0.
P(K,L+1) = 0.
DO 120 M1=1,N
P(K,L) = P(K,L) + Q(K,M1) * H(M1,IT)
P(K,L+1) = P(K,L+1) + QI(K,M1)*H(M1,IT)
120 CONTINUE
P(K,L) = P(K,L) * CONST
P(K,L+1) = P(K,L+1) * CONST
130 CONTINUE
C
C PACK OUT
C
NN = NN+N
DO 150 J=1,N2,2
DO 140 K=1,N
PC(K) = CMPLX(P(K,J),P(K,J+1))
140 CONTINUE
CALL PACK(PC,AJJL,MCB)
150 CONTINUE
II = II+N
200 CONTINUE
RETURN
END
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