12 |
USE dimens_m, ONLY: iim |
USE dimens_m, ONLY: iim |
13 |
use dynetat0_m, only: clon |
use dynetat0_m, only: clon |
14 |
use nr_util, only: pi_d, twopi_d |
use nr_util, only: pi_d, twopi_d |
15 |
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use numer_rec_95, only: hunt |
16 |
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17 |
DOUBLE PRECISION, intent(in):: Xf(0:), xtild(0:), Xprimt(0:) ! (0:2 * nmax) |
DOUBLE PRECISION, intent(in):: Xf(0:), xtild(0:), Xprimt(0:) ! (0:2 * nmax) |
18 |
real, intent(out):: xlon(:), xprimm(:) ! (iim) |
real, intent(out):: xlon(:), xprimm(:) ! (iim) |
19 |
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20 |
DOUBLE PRECISION, intent(in):: xuv |
DOUBLE PRECISION, intent(in):: xuv |
21 |
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! between - 0.25 and 0.5 |
22 |
! 0. si calcul aux points scalaires |
! 0. si calcul aux points scalaires |
23 |
! 0.5 si calcul aux points U |
! 0.5 si calcul aux points U |
24 |
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25 |
! Local: |
! Local: |
26 |
DOUBLE PRECISION xo1, Xfi, a0, a1, a2, a3, Xf1, Xprimin |
DOUBLE PRECISION xo1, Xfi, a0, a1, a2, a3, Xf1, Xprimin |
32 |
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33 |
!------------------------------------------------------------------ |
!------------------------------------------------------------------ |
34 |
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35 |
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it = 0 ! initial guess |
36 |
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37 |
DO i = 1, iim |
DO i = 1, iim |
38 |
Xfi = - pi_d + (i + xuv - 0.75d0) * twopi_d / iim |
Xfi = - pi_d + (i + xuv - 0.75d0) * twopi_d / iim |
39 |
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! - pi <= xfi < pi |
40 |
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41 |
it = 2 * nmax |
call hunt(xf, xfi, it, my_lbound = 0) |
42 |
do while (xfi < xf(it) .and. it >= 1) |
it = max(0, it) |
43 |
it = it - 1 |
! In principle, xfi >= xf(0), max with 0 just in case of |
44 |
end do |
! roundoff error. {0 <= it <= 2 * nmax - 1} |
45 |
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46 |
! Calcul de Xf(xvrai(i)) |
! Calcul de Xf(xvrai(i)) |
47 |
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xvrai(i) = xtild(it) |
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IF (it == 2 * nmax) it = 2 * nmax -1 |
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48 |
CALL coefpoly(Xf(it), Xf(it + 1), Xprimt(it), Xprimt(it + 1), & |
CALL coefpoly(Xf(it), Xf(it + 1), Xprimt(it), Xprimt(it + 1), & |
49 |
xtild(it), xtild(it + 1), a0, a1, a2, a3) |
xtild(it), xtild(it + 1), a0, a1, a2, a3) |
50 |
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xvrai(i) = xtild(it) |
51 |
Xf1 = Xf(it) |
Xf1 = Xf(it) |
52 |
Xprimin = a1 + xvrai(i) * (2d0 * a2 + xvrai(i) * 3d0 * a3) |
Xprimin = a1 + xvrai(i) * (2d0 * a2 + xvrai(i) * 3d0 * a3) |
53 |
xo1 = xvrai(i) |
xo1 = xvrai(i) |