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#include "externals.h"
* $Id: ffxe0.f,v 1.4 1996/01/10 15:36:51 gj Exp $
*###[ ffxe0:
subroutine ffxe0(ce0,cd0i,xpi,ier)
***#[*comment:***********************************************************
* *
* calculate *
* *
* 1 / / \-1*
* e0= -----\dq |(q^2-m_1^2)((q+p_1)^2-m_2^2)...((q-p_5)^2-m_5^2| *
* ipi^2/ \ / *
* *
* following the five four-point-function method in .... *
* As an extra the five fourpoint function Di are also returned *
* if ( ldot ) the dotproducts are left behind in fpij5(15,15) in *
* /ffdot/ and the external determinants fdel4 and fdl3i(5) in *
* /ffdel/. *
* *
* Input: xpi = m_i^2 (real) i=1,5 *
* xpi = p_i.p_i (real) i=6,10 (note: B&D metric) *
* xpi = (p_i+p_{i+1})^2 (r) i=11,15 *
* xpi = (p_i+p_{i+2})^2 (r) i=16,20 OR 0 *
* *
* Output: ce0 (complex) *
* cd0i(5) (complex) D0 with s_i missing *
* ier (integr) 0=ok 1=inaccurate 2=error *
* *
***#]*comment:***********************************************************
* #[ declarations:
implicit none
*
* arguments
*
DOUBLE PRECISION xpi(20)
DOUBLE COMPLEX ce0,cd0i(5)
integer ier
*
* local variables
*
integer i,j,NMIN,NMAX,ier0,i6,i7,i8,i9
parameter(NMIN=15,NMAX=20)
DOUBLE PRECISION dpipj(NMIN,NMAX),xmax
logical lp5(NMAX-NMIN)
*
* common blocks:
*
#include "ff.h"
* #] declarations:
* #[ get differences:
*
* simulate the differences in the masses etc..
*
* first p16-p20
*
do 5 i=1,5
if ( xpi(i+15) .eq. 0 ) then
i6 = i+5
i7 = i6+1
if ( i7 .ge. 11 ) i7 = 6
i8 = i7+1
if ( i8 .ge. 11 ) i8 = 6
i9 = i8+1
if ( i9 .ge. 11 ) i9 = 6
xpi(i+15) = xpi(i6)+xpi(i7)+xpi(i8)-xpi(i6+5)-xpi(i7+5)+
+ xpi(i9+5)
xmax = max(abs(xpi(i6)),abs(xpi(i7)),abs(xpi(i8)),abs(
+ xpi(i6+5)),abs(xpi(i7+5)),abs(xpi(i9+5)))
if ( abs(xpi(i+15)) .lt. xloss*xmax )
+ call ffwarn(168,ier,xpi(i+15),xmax)
lp5(i) = .TRUE.
else
lp5(i) = .FALSE.
endif
5 continue
*
* next the differences
*
ier0 = 0
do 40 i=1,NMAX
do 30 j=1,NMIN
dpipj(j,i) = xpi(j) - xpi(i)
30 continue
40 continue
* #] get differences:
* #[ call ffxe0a:
call ffxe0a(ce0,cd0i,xpi,dpipj,ier)
* #] call ffxe0a:
* #[ clean up:
do 90 i=1,5
if ( lp5(i) ) then
xpi(i+NMIN) = 0
endif
90 continue
* #] clean up:
*###] ffxe0:
end
*###[ ffxe0a:
subroutine ffxe0a(ce0,cd0i,xpi,dpipj,ier)
***#[*comment:***********************************************************
* *
* calculate *
* *
* 1 / / \-1*
* e0= -----\dq |(q^2-m_1^2)((q+p_1)^2-m_2^2)...((q-p_5)^2-m_5^2| *
* ipi^2/ \ / *
* *
* following the five four-point-function method in .... *
* As an extra the five fourpoint function Di are also returned *
* if ( ldot ) the dotproducts are left behind in fpij5(15,15) in *
* /ffdot/ and the external determinants fdel4 and fdl3i(5) in *
* /ffdel/. *
* *
* Input: xpi = m_i^2 (real) i=1,5 *
* xpi = p_i.p_i (real) i=6,10 (note: B&D metric) *
* xpi = (p_i+p_{i+1})^2 (r) i=11,15 *
* xpi = (p_i+p_{i+2})^2 (r) i=16,20 *
* dpipj(15,20) (real) = pi(i) - pi(j) *
* *
* Output: ce0 (complex) *
* cd0i(5) (complex) D0 with s_i missing *
* ier (integer) <50:lost # digits 100=error *
* *
***#]*comment:***********************************************************
* #[ declarations:
implicit none
*
* arguments
*
integer ier
DOUBLE COMPLEX ce0,cd0i(5)
DOUBLE PRECISION xpi(20),dpipj(15,20)
*
* local variables
*
integer i,j,ii(10),ii4(6),ieri(5),ier0,imin,itype,ndiv,idone,
+ ier1
logical ldel2s
DOUBLE COMPLEX c,cfac,cs,csum
DOUBLE PRECISION dl5s,dl4p,xpi4(13),dpipj4(10,13),piDpj4(10,10),
+ absc,xmax,piDpj(15,15),xqi4(13),dqiqj4(10,13),
+ qiDqj4(10,10),del2s,xmx5(5),dl4ri(5)
save ii4
*
* common blocks:
*
#include "ff.h"
*
* statement function
*
absc(c) = abs(DBLE(c)) + abs(DIMAG(c))
*
* data
*
data ii4 /5,6,7,8,9,10/
*
* #] declarations:
* #[ initialisations:
ndiv = 0
idsub = 0
ce0 = 0
do 1 i=1,5
cd0i(i) = 0
1 continue
* #] initialisations:
* #[ calculations:
*
idsub = idsub + 1
call ffdot5(piDpj,xpi,dpipj,ier)
if ( ldot ) then
do 6 i=1,15
do 5 j=1,15
fpij5(j,i) = piDpj(j,i)
5 continue
6 continue
do 10 i=1,10
ii(i) = i+5
10 continue
idsub = idsub + 1
ier0 = 0
call ffdl4p(dl4p,piDpj,ii)
* if ( dl4p .lt. 0 ) then
* call fferr(57,ier)
* endif
fdel4 = dl4p
endif
idsub = idsub + 1
call ffdel5(dl5s,xpi,piDpj)
*
do 40 i=1,5
ieri(i) = ier
40 continue
*
do 100 i=1,5
*
* get the coefficient determinant
*
idsub = idsub + 1
call ffdl4r(dl4ri(i),piDpj,i)
*
* get four-point momenta
*
call ffpi54(xpi4,dpipj4,piDpj4,xpi,dpipj,piDpj,i)
*
* first try IR divergent function to avoid error messages from ffrot4
*
ier1 = ieri(i)
call ffxdir(cs,cfac,idone,xpi4,dpipj4,6,ndiv,ier1)
if ( idone .gt. 0 ) then
* done
xmax = abs(cs)*10d0**(-mod((ier1-ieri(i)),50))
else
*
* rotate to calculable posistion
*
call ffrot4(irota4,del2s,xqi4,dqiqj4,qiDqj4,xpi4,dpipj4,
+ piDpj4,5,itype,ieri(i))
if ( itype .lt. 0 ) then
print *,'ffxe0: error: Cannot handle this ',
+ ' 4point masscombination yet:'
print *,(xpi(j),j=1,20)
return
endif
if ( itype .eq. 1 ) then
ldel2s = .TRUE.
isgnal = +1
print *,'ffxe0a: Cannot handle del2s = 0 yet'
stop
else
ldel2s = .FALSE.
endif
if ( itype .eq. 2 ) then
print *,'ffxe0a: no doubly IR divergent yet'
stop
endif
*
* get fourpoint function
*
ier0 = ieri(i)
call ffxd0e(cs,cfac,xmax, .FALSE.,ndiv,xqi4,dqiqj4,
+ qiDqj4,del2s,ldel2s,ieri(i))
if ( ieri(i).gt.10 ) then
isgnal = -isgnal
ieri(i) = ier0
call ffxd0e(cs,cfac,xmax, .TRUE.,ndiv,xqi4,dqiqj4,
+ qiDqj4,del2s,ldel2s,ieri(i))
isgnal = -isgnal
endif
endif
*
* Finally ...
*
cd0i(i) = cs*cfac
xmx5(i) = xmax*absc(cfac)
if ( ldot ) then
call ffdl3p(fdl3i(i),piDpj4,10,ii4,ii4)
* let's hope tha tthese have been set by ffxd0e...
fdl4si(i) = fdel4s
endif
100 continue
*
* #] calculations:
* #[ add all up:
*
csum = 0
xmax = 0
imin = 1
do 200 i=1,5
imin = -imin
csum = csum + imin*DBLE(dl4ri(i))*cd0i(i)
if ( ieri(i) .gt. 50 ) then
ieri(i) = mod(ieri(i),50)
endif
xmax = max(xmax,dl4ri(i)*xmx5(i)*DBLE(10)**mod(ieri(i),50))
200 continue
*
* If the imaginary part is very small it most likely is zero
* (can be removed, just esthetically more pleasing)
*
if ( abs(DIMAG(csum)) .lt. precc*abs(DBLE(csum)) )
+ csum = DCMPLX(DBLE(csum))
*
* Finally ...
*
ce0 = csum*(1/DBLE(2*dl5s))
*
* #] add all up:
*###] ffxe0a:
end
*###[ ffxe00:
subroutine ffxe00(ce0,cd0i,dl4ri,xpi,piDpj)
***#[*comment:***********************************************************
* *
* calculate *
* *
* 1 / / \-1*
* e0= -----\dq |(q^2-m_1^2)((q+p_1)^2-m_2^2)...((q-p_5)^2-m_5^2| *
* ipi^2/ \ / *
* *
* following the five four-point-function method in .... *
* The four five fourpoint function Di are input in this version. *
* *
* Input: cd0i(5) (complex) D0 with s_i missing *
* dl4ri(5) (real) coeff of D0 *
* xpi = m_i^2 (real) i=1,5 *
* xpi = p_i.p_i (real) i=6,10 (note: B&D metric) *
* xpi = (p_i+p_{i+1})^2 (r) i=11,15 *
* xpi = (p_i+p_{i+2})^2 (r) i=16,20 *
* piDpj(15,15) (real) pi.pj *
* *
* Output: ce0 (complex) *
* *
***#]*comment:***********************************************************
* #[ declarations:
implicit none
*
* arguments
*
DOUBLE COMPLEX ce0,cd0i(5)
DOUBLE PRECISION dl4ri(5),xpi(20),piDpj(15,15)
*
* local variables
*
integer i,ii(10),imin
DOUBLE COMPLEX c,csum
DOUBLE PRECISION dl5s,dl4p,absc,xmax
*
* common blocks:
*
#include "ff.h"
*
* statement function
*
absc(c) = abs(DBLE(c)) + abs(DIMAG(c))
* #] declarations:
* #[ initialisations:
*
idsub = idsub + 1
ce0 = 0
*
* #] initialisations:
* #[ calculations:
*
if ( ldot ) then
do 10 i=1,10
ii(i) = i+5
10 continue
idsub = idsub + 1
call ffdl4p(dl4p,piDpj,ii)
fdel4 = dl4p
endif
idsub = idsub + 1
call ffdel5(dl5s,xpi,piDpj)
*
* #] calculations:
* #[ add all up:
*
csum = 0
xmax = 0
imin = 1
do 200 i=1,5
imin = -imin
csum = csum + imin*DBLE(dl4ri(i))*cd0i(i)
xmax = max(xmax,abs(dl4ri(i))*absc(cd0i(i)))
200 continue
*
* If the imaginary part is very small it most likely is zero
* (can be removed, just esthetically more pleasing)
*
if ( abs(DIMAG(csum)) .lt. precc*abs(DBLE(csum)) )
+ csum = DCMPLX(DBLE(csum))
*
* Finally ...
*
ce0 = csum*(1/DBLE(2*dl5s))
*
* #] add all up:
*###] ffxe00:
end
*###[ ffdot5:
subroutine ffdot5(piDpj,xpi,dpipj,ier)
***#[*comment:***********************************************************
* *
* calculate the dotproducts pi.pj with *
* *
* xpi(i) = s_i i=1,5 *
* xpi(i) = p_i i=6,10 *
* xpi(i) = p_i+p_{i+1} i=11,15 *
* *
***#]*comment:***********************************************************
* #[ declarations:
implicit none
*
* arguments
*
integer ier
DOUBLE PRECISION xpi(20),dpipj(15,20),piDpj(15,15)
*
* local variables
*
integer is1,is2,is3,is4,ip6,ip7,ip8,ip11,ip12,ip14,
+ itel,i1,i2,i3,i4,i5,i6,ierin
*
* common blocks
*
#include "ff.h"
*
* data
*
* #] declarations:
* #[ indices:
ierin = ier
do 10 is1=1,5
is2 = is1 + 1
if ( is2 .eq. 6 ) is2 = 1
is3 = is2 + 1
if ( is3 .eq. 6 ) is3 = 1
ip6 = is1 + 5
ip7 = is2 + 5
ip11 = ip6 + 5
*
* we have now defined a 3point function
*
* | -p11
* |
* / \
* s1/ \s3
* ___/_____\___
* p6 s2 p7
*
* #] indices:
* #[ all in one vertex:
*
* pi.pi, si.si
*
piDpj(is1,is1) = xpi(is1)
piDpj(ip6,ip6) = xpi(ip6)
piDpj(ip11,ip11) = xpi(ip11)
*
* si.s(i+1)
*
if ( xpi(is2) .le. xpi(is1) ) then
piDpj(is1,is2) = (dpipj(is1,ip6) + xpi(is2))/2
else
piDpj(is1,is2) = (dpipj(is2,ip6) + xpi(is1))/2
endif
piDpj(is2,is1) = piDpj(is1,is2)
*
* si.s(i+2)
*
if ( xpi(is1) .le. xpi(is3) ) then
piDpj(is3,is1) = (dpipj(is3,ip11) + xpi(is1))/2
else
piDpj(is3,is1) = (dpipj(is1,ip11) + xpi(is3))/2
endif
piDpj(is1,is3) = piDpj(is3,is1)
*
* pi.si
*
if ( abs(xpi(ip6)) .le. xpi(is1) ) then
piDpj(ip6,is1) = (dpipj(is2,is1) - xpi(ip6))/2
else
piDpj(ip6,is1) = (dpipj(is2,ip6) - xpi(is1))/2
endif
piDpj(is1,ip6) = piDpj(ip6,is1)
*
* pi.s(i+1)
*
if ( abs(xpi(ip6)) .le. xpi(is2) ) then
piDpj(ip6,is2) = (dpipj(is2,is1) + xpi(ip6))/2
else
piDpj(ip6,is2) = (dpipj(ip6,is1) + xpi(is2))/2
endif
piDpj(is2,ip6) = piDpj(ip6,is2)
*
* p(i+2).s(i)
*
if ( abs(xpi(ip11)) .le. xpi(is1) ) then
piDpj(ip11,is1) = -(dpipj(is1,is3) + xpi(ip11))/2
else
piDpj(ip11,is1) = -(dpipj(ip11,is3) + xpi(is1))/2
endif
piDpj(is1,ip11) = piDpj(ip11,is1)
*
* p(i+2).s(i+2)
*
if ( abs(xpi(ip11)) .le. xpi(is3) ) then
piDpj(ip11,is3) = -(dpipj(is1,is3) - xpi(ip11))/2
else
piDpj(ip11,is3) = -(dpipj(is1,ip11) - xpi(is3))/2
endif
piDpj(is3,ip11) = piDpj(ip11,is3)
* #] all in one vertex:
* #[ all in one 3point:
*
* pi.s(i+2)
*
if ( min(abs(dpipj(is2,is1)),abs(dpipj(ip11,ip7))) .le.
+ min(abs(dpipj(ip11,is1)),abs(dpipj(is2,ip7))) ) then
piDpj(ip6,is3) = (dpipj(ip11,ip7) + dpipj(is2,is1))/2
else
piDpj(ip6,is3) = (dpipj(ip11,is1) + dpipj(is2,ip7))/2
endif
piDpj(is3,ip6) = piDpj(ip6,is3)
*
* p(i+1).s(i)
*
if ( min(abs(dpipj(is3,is2)),abs(dpipj(ip6,ip11))) .le.
+ min(abs(dpipj(ip6,is2)),abs(dpipj(is3,ip11))) ) then
piDpj(ip7,is1) = (dpipj(ip6,ip11) + dpipj(is3,is2))/2
else
piDpj(ip7,is1) = (dpipj(ip6,is2) + dpipj(is3,ip11))/2
endif
piDpj(is1,ip7) = piDpj(ip7,is1)
*
* p(i+2).s(i+1)
*
if ( min(abs(dpipj(is1,is3)),abs(dpipj(ip7,ip6))) .le.
+ min(abs(dpipj(ip7,is3)),abs(dpipj(is1,ip6))) ) then
piDpj(ip11,is2) = -(dpipj(ip7,ip6) + dpipj(is1,is3))/2
else
piDpj(ip11,is2) = -(dpipj(ip7,is3) + dpipj(is1,ip6))/2
endif
piDpj(is2,ip11) = piDpj(ip11,is2)
* #] all in one 3point:
* #[ all external 3point:
*
* pi.p(i+1)
*
if ( abs(xpi(ip7)) .le. abs(xpi(ip6)) ) then
piDpj(ip6,ip7) = (dpipj(ip11,ip6) - xpi(ip7))/2
else
piDpj(ip6,ip7) = (dpipj(ip11,ip7) - xpi(ip6))/2
endif
piDpj(ip7,ip6) = piDpj(ip6,ip7)
*
* p(i+1).p(i+2)
*
if ( abs(xpi(ip11)) .le. abs(xpi(ip7)) ) then
piDpj(ip7,ip11) = -(dpipj(ip6,ip7) - xpi(ip11))/2
else
piDpj(ip7,ip11) = -(dpipj(ip6,ip11) - xpi(ip7))/2
endif
piDpj(ip11,ip7) = piDpj(ip7,ip11)
*
* p(i+2).p(i)
*
if ( abs(xpi(ip6)) .le. abs(xpi(ip11)) ) then
piDpj(ip11,ip6) = -(dpipj(ip7,ip11) - xpi(ip6))/2
else
piDpj(ip11,ip6) = -(dpipj(ip7,ip6) - xpi(ip11))/2
endif
piDpj(ip6,ip11) = piDpj(ip11,ip6)
* #] all external 3point:
* #[ the other 3point:
is4 = is3 + 1
if ( is4 .eq. 6 ) is4 = 1
ip8 = is3 + 5
ip14 = is4 + 10
*
* we now work with the threepoint configuration
*
* | p14
* |
* / \
* s1/ \s4
* ___/_____\___
* p11 s3 p8
*
* s1.p8
*
do 11 itel = 1,3
if ( itel .eq. 1 ) then
i1 = is1
i2 = is3
i3 = is4
i4 = ip11
i5 = ip8
i6 = ip14
elseif ( itel .eq. 2 ) then
i1 = is3
i2 = is4
i3 = is1
i4 = ip8
i5 = ip14
i6 = ip11
else
i1 = is4
i2 = is1
i3 = is3
i4 = ip14
i5 = ip11
i6 = ip8
endif
*
* in one go: the opposite sides
*
if ( min(abs(dpipj(i3,i2)),abs(dpipj(i4,i6))) .le.
+ min(abs(dpipj(i4,i2)),abs(dpipj(i3,i6))) ) then
piDpj(i5,i1) = (dpipj(i3,i2) + dpipj(i4,i6))/2
else
piDpj(i5,i1) = (dpipj(i4,i2) + dpipj(i3,i6))/2
endif
piDpj(i1,i5) = piDpj(i5,i1)
*
* and the remaining external ones
*
if ( abs(xpi(i5)) .le. abs(xpi(i4)) ) then
piDpj(i4,i5) = (dpipj(i6,i4) - xpi(i5))/2
else
piDpj(i4,i5) = (dpipj(i6,i5) - xpi(i4))/2
endif
piDpj(i5,i4) = piDpj(i4,i5)
11 continue
* #] the other 3point:
* #[ 4point indices:
ip12 = ip7+5
*
* we now have the fourpoint configuration
*
* \p14 /p8
* \____/
* | s4 |
* s1| |s3
* |____|
* p6/ s2 \p7
* / \
*
*
*
do 12 itel = 1,2
if ( itel .eq. 1 ) then
i1 = ip6
i2 = ip8
i3 = ip7
i4 = ip14
else
i1 = ip7
i2 = ip14
i3 = ip6
i4 = ip8
endif
if ( min(abs(dpipj(i3,ip11)),abs(dpipj(i4,ip12))) .le.
+ min(abs(dpipj(i4,ip11)),abs(dpipj(i3,ip12))) ) then
piDpj(i1,i2) = (dpipj(i3,ip11) + dpipj(i4,ip12))/2
else
piDpj(i1,i2) = (dpipj(i4,ip11) + dpipj(i3,ip12))/2
endif
piDpj(i2,i1) = piDpj(i1,i2)
12 continue
*
* we are only left with p11.p12 etc.
*
if ( min(abs(dpipj(ip14,ip8)),abs(dpipj(ip7,ip6))) .le.
+ min(abs(dpipj(ip7,ip8)),abs(dpipj(ip14,ip6))) ) then
piDpj(ip11,ip12) = (dpipj(ip7,ip6) + dpipj(ip14,ip8))/2
else
piDpj(ip11,ip12) = (dpipj(ip7,ip8) + dpipj(ip14,ip6))/2
endif
piDpj(ip12,ip11) = piDpj(ip11,ip12)
10 continue
* #] 4point indices:
*###] ffdot5:
end
*###[ ffpi54:
subroutine ffpi54(xpi4,dpipj4,piDpj4,xpi,dpipj,piDpj,inum)
***#[*comment:***********************************************************
* *
* Gets the dotproducts pertaining to the fourpoint function with *
* s_i missing out of the five point function dotproduct array. *
* *
* Input: xpi real(20) si.si,pi.pi *
* dpipj real(15,20) xpi(i) - xpi(j) *
* piDpj real(15,15) pi(i).pi(j) *
* inum integer 1--5 *
* *
* Output: xpi4 real(13) *
* dpipj4 real(10,13) *
* piDpj4 real(10,10) *
* *
***#]*comment:***********************************************************
* #[ declarations:
implicit none
*
* arguments
*
integer inum
DOUBLE PRECISION xpi(20),dpipj(15,20),piDpj(15,15),xpi4(13),
+ dpipj4(10,13),piDpj4(10,10)
*
* local variables
*
integer i,j,iplace(11,5),isigns(11,5)
save iplace,isigns
*
* common blocks
*
#include "ff.h"
*
* data
*
data iplace /
+ 2,3,4,5, 07,08,09,15, 12,13, 17,
+ 1,3,4,5, 11,08,09,10, 14,13, 18,
+ 1,2,4,5, 06,12,09,10, 14,15, 19,
+ 1,2,3,5, 06,07,13,10, 11,15, 20,
+ 1,2,3,4, 06,07,08,14, 11,12, 16/
*
data isigns /
+ +1,+1,+1,+1, +1,+1,+1,+1, -1,+1, +1,
+ +1,+1,+1,+1, +1,+1,+1,+1, +1,+1, +1,
+ +1,+1,+1,+1, +1,+1,+1,+1, +1,-1, +1,
+ +1,+1,+1,+1, +1,+1,+1,+1, -1,-1, +1,
+ +1,+1,+1,+1, +1,+1,+1,+1, -1,+1, +1/
* #] declarations:
* #[ distribute:
*
* copy p5-p11
*
do 20 i=1,11
xpi4(i) = xpi(iplace(i,inum))
do 10 j=1,10
dpipj4(j,i) = dpipj(iplace(j,inum),iplace(i,inum))
10 continue
20 continue
*
* these cannot be simply copied I think
*
xpi4(12) = -xpi4(5)+xpi4(6)-xpi4(7)+xpi4(8)+xpi4(9)+xpi4(10)
xpi4(13) = xpi4(5)-xpi4(6)+xpi4(7)-xpi4(8)+xpi4(9)+xpi4(10)
*
* and the differences
*
do 40 i=12,13
do 30 j=1,10
dpipj4(j,i) = xpi4(j) - xpi4(i)
30 continue
40 continue
*
* copy the dotproducts (watch the signs of p9,p10!)
*
do 60 i=1,10
do 50 j=1,10
piDpj4(j,i) = isigns(j,inum)*isigns(i,inum)*
+ piDpj(iplace(j,inum),iplace(i,inum))
50 continue
60 continue
* #] distribute:
*###] ffpi54:
end
*###[ ffxe0r:
subroutine ffxe0r(ce0,cd0i,xpi,ier)
***#[*comment:***********************************************************
* *
* Tries all 12 permutations of the 5pointfunction *
* *
***#]*comment:***********************************************************
* #[ declarations:
implicit none
integer ier,nrot
parameter(nrot=12)
DOUBLE PRECISION xpi(20),xqi(20)
DOUBLE COMPLEX ce0,cd0i(5),ce0p,cd0ip(5),cd0ipp(5)
integer inew(20,nrot),irota,ier1,i,j,k,icon,ialsav,init
logical lcon
parameter (icon=3)
save inew,init,lcon
#include "ff.h"
data inew
+ /1,2,3,4,5, 6,7,8,9,10,11,12,13,14,15, 16,17,18,19,20,
+ 2,1,3,4,5, 6,11,8,9,15,7,14,13,12,10, 16,18,17,19,-20,
+ 1,3,2,4,5, 11,7,12,9,10,6,8,15,14,13, -16,17,19,18,20,
+ 1,2,4,3,5, 6,12,8,13,10,14,7,9,11,15, 16,-17,18,20,19,
+ 1,2,3,5,4, 6,7,13,9,14,11,15,8,10,12, 20,17,-18,19,16,
+ 5,2,3,4,1, 15,7,8,14,10,13,12,11,9,6, 17,16,18,-19,20,
+ 2,1,4,3,5, 6,14,8,13,15,12,11,9,7,10, 16,-18,17,20,-19,
+ 1,3,2,5,4, 11,7,15,9,14,6,13,12,10,8, -20,17,-19,18,16,
+ 5,2,4,3,1, 15,12,8,11,10,9,7,14,13,6, 17,-16,18,-20,19,
+ 2,1,3,5,4, 6,11,13,9,12,7,10,8,15,14, 20,18,-17,19,-16,
+ 5,3,2,4,1, 13,7,12,14,10,15,8,6,9,11, -17,16,19,-18,20,
+ 1,3,5,2,4, 11,13,15,12,14,10,7,9,6,8,-20,-17,-19,-16,-18/
data init /0/
* #] declarations:
* #[ open console for some activity on screen:
if ( init .eq. 0 ) then
init = 1
lcon = .FALSE.
endif
* #] open console for some activity on screen:
* #[ calculations:
ce0 = 0
ier = 999
ialsav = isgnal
do 30 j = -1,1,2
do 20 irota=1,nrot
do 10 i=1,20
if ( inew(i,irota) .lt. 0 ) then
xqi(-inew(i,irota)) = 0
else
xqi(inew(i,irota)) = xpi(i)
endif
10 continue
print '(a,i2,a,i2)','---#[ rotation ',irota,
+ ': isgnal ',isgnal
if (lcon) write(icon,'(a,i2,a,i2)') 'rotation ',irota,
+ ', isgnal ',isgnal
ier1 = 0
ner = 0
id = id + 1
isgnal = ialsav
call ffxe0(ce0p,cd0ip,xqi,ier1)
ier1 = ier1 + ner
print '(a,i1,a,i2)','---#] rotation ',irota,': isgnal ',
+ isgnal
print '(a,2g28.16,i3)','e0 = ',ce0p,ier1
do 15 k=1,5
cd0ipp(k) = cd0ip(inew(k,irota))
print '(a,2g28.16,i3)','d0 = ',cd0ipp(k),k
15 continue
if (lcon) write(icon,'(a,2g28.16,i3)')'e0 = ',ce0p,ier1
if ( ier1 .lt. ier ) then
ce0 = ce0p
do 19 k=1,5
cd0i(k) = cd0ipp(k)
19 continue
ier = ier1
endif
20 continue
ialsav = -ialsav
30 continue
* #] calculations:
*###] ffxe0r:
end
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