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fvn_test/test_specfunc.f90 2.46 KB
27d3b84d6   daniau   git-svn-id: https...
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  program test_specfunc
  use fvn_fnlib
  implicit none
  integer,parameter :: npoints=200
  integer :: i
f6bacaf83   cwaterkeyn   ChW 11/09: ANSI c...
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  real(kind=dp_kind), dimension(npoints) :: j0
  real(kind=dp_kind) :: xmin,xmax,xstep,x,y
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  ! bsj0
  xmin=-20.
  xmax=20.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='bsj0.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=bsj0(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
  
  ! bsj1
  xmin=-20.
  xmax=20.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='bsj1.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=bsj1(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
  
  !bsi0
  xmin=-4.
  xmax=4.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='bsi0.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=bsi0(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
  
  !bsi1
  xmin=-4.
  xmax=4.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='bsi1.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=bsi1(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
  
  !bsy0
  xmin=0.
  xmax=20.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='bsy0.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=bsy0(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
  
  !bsy1
  xmin=0.
  xmax=20.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='bsy1.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=bsy1(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
  
  !bsk0
  xmin=0.
  xmax=4.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='bsk0.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=bsk0(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
  
  !bsk1
  xmin=0.
  xmax=4.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='bsk1.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=bsk1(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
  
  !erf
  xmin=-4.
  xmax=4.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='erf.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=erf(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
  
  ! gamma
  xmin=-3.
  xmax=7.
  xstep=(xmax-xmin)/2000.
  open(2,file='gamma.dat')
  do i=1,2000
  x=xmin+i*xstep
  if ((abs(x-nint(x)) >= 1d-6) .or. x>0. )then
      y=gamma(x)
      write(2,'(2e22.14)') x,y
  end if
  end do
  close(2)
  
  ! 1/gamma
  xmin=-3.
  xmax=7.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='gamr.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=gamr(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
  
  ! ei
  xmin=0.
  xmax=1.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='ei.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=ei(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
  
  ! e1
  xmin=0.
  xmax=1.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='e1.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=e1(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
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  ! dawson
  xmin=-5.
  xmax=5.
  xstep=(xmax-xmin)/dble(npoints)
  open(2,file='daws.dat')
  do i=1,npoints
  x=xmin+i*xstep
  y=daws(x)
  write(2,'(2e22.14)') x,y
  end do
  close(2)
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  end program test_specfunc