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module fxhyp_loop_ik_m |
module invert_zoom_x_m |
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implicit none |
implicit none |
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contains |
contains |
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subroutine fxhyp_loop_ik(xf, xtild, Xprimt, xzoom, xlon, xprimm, xuv) |
subroutine invert_zoom_x(xf, xtild, Xprimt, xlon, xprimm, xuv) |
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use coefpoly_m, only: coefpoly |
use coefpoly_m, only: coefpoly |
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USE dimens_m, ONLY: iim |
USE dimens_m, ONLY: iim |
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use dynetat0_m, only: clon |
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use nr_util, only: pi_d, twopi_d |
use nr_util, only: pi_d, twopi_d |
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use numer_rec_95, only: hunt |
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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) |
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DOUBLE PRECISION, intent(in):: xzoom |
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real, intent(out):: xlon(:), xprimm(:) ! (iim) |
real, intent(out):: xlon(:), xprimm(:) ! (iim) |
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DOUBLE PRECISION, intent(in):: xuv |
DOUBLE PRECISION, intent(in):: xuv |
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! between - 0.25 and 0.5 |
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! 0. si calcul aux points scalaires |
! 0. si calcul aux points scalaires |
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! 0.5 si calcul aux points U |
! 0.5 si calcul aux points U |
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! Local: |
! Local: |
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DOUBLE PRECISION xo1, Xfi, a0, a1, a2, a3, Xf1, Xprimin |
DOUBLE PRECISION xo1, Xfi, a0, a1, a2, a3, Xf1, Xprimin |
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!------------------------------------------------------------------ |
!------------------------------------------------------------------ |
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it = 0 ! initial guess |
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DO i = 1, iim |
DO i = 1, iim |
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Xfi = - pi_d + (i + xuv - 0.75d0) * twopi_d / iim |
Xfi = - pi_d + (i + xuv - 0.75d0) * twopi_d / iim |
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! - pi <= xfi < pi |
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it = 2 * nmax |
call hunt(xf, xfi, it, my_lbound = 0) |
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do while (xfi < xf(it) .and. it >= 1) |
it = max(0, it) |
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it = it - 1 |
! In principle, xfi >= xf(0), max with 0 just in case of |
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end do |
! roundoff error. {0 <= it <= 2 * nmax - 1} |
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! Calcul de Xf(xvrai(i)) |
! Calcul de Xf(xvrai(i)) |
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xvrai(i) = xtild(it) |
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IF (it == 2 * nmax) THEN |
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it = 2 * nmax -1 |
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END IF |
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CALL coefpoly(Xf(it), Xf(it + 1), Xprimt(it), Xprimt(it + 1), & |
CALL coefpoly(Xf(it), Xf(it + 1), Xprimt(it), Xprimt(it + 1), & |
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xtild(it), xtild(it + 1), a0, a1, a2, a3) |
xtild(it), xtild(it + 1), a0, a1, a2, a3) |
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xvrai(i) = xtild(it) |
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Xf1 = Xf(it) |
Xf1 = Xf(it) |
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Xprimin = a1 + xvrai(i) * (2d0 * a2 + xvrai(i) * 3d0 * a3) |
Xprimin = a1 + xvrai(i) * (2d0 * a2 + xvrai(i) * 3d0 * a3) |
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xo1 = xvrai(i) |
xo1 = xvrai(i) |
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END IF |
END IF |
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END DO |
END DO |
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xlon = xvrai + xzoom |
xlon = xvrai + clon |
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xprimm = xxprim |
xprimm = xxprim |
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end subroutine fxhyp_loop_ik |
end subroutine invert_zoom_x |
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end module fxhyp_loop_ik_m |
end module invert_zoom_x_m |