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harryzs

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jjdg(½ð±Ò+1): ¸Ðл²ÎÓë 2012-02-01 00:04:34
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2Â¥2012-01-31 20:40:45
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jjdg(½ð±Ò+1): ¸Ðл²ÎÓë 2012-02-01 00:04:52
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2Â¥: Originally posted by harryzs at 2012-01-31 20:40:45:
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3Â¥2012-01-31 21:48:46
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ben_ladeng(½ð±Ò+1): 2012-02-01 20:59:35
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DO I=2,N-1
   HX(I)=(H1(I+1)-H1(I-1))/(2*DX)
ENDDO

HX(1)=0
HX(N)=0

DO I=2,N-1
    H2X(I)=(H1(I+1)-2*H1(I)+H1(I-1))/(DX*DX)
ENDDO

H2X(1)=0
H2X(N)=0
4Â¥2012-02-01 11:50:19
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½ð³æ (ÖøÃûдÊÖ)

program Ne

integer :: I,J, N, Ny
real::  ne(J)
real::  Hx(I)
N=1000
Ny=1000
Dx=0.1
Dt=0.1
n0=5E+2
m=2.1
p=2
Te=5
q=0.6E-19
E=2
k=0.514E-9
v=n0*k
Hx(0)=sqrt(8*Te/pm)*ne*(1-0.25)
Hx(I)=-(q/m*v)*E(ne/(1-exp(q*E*Dx/Te)+ne/(1-exp(-q*E*Dx/Te))

open (unit=10,FILE='1.txt')
DO I=2,N-1

  DO J=2,Ny-1
    HX(I)=(H1(I+1)-H1(I-1))/(2*DX)
    ne(J)=(ne(J+1)-ne(J-1))/(2*Dt)
    ne(J)=Hx(I)+R
   end do
end do


write (10,"('N=?,Ny=?')" ne(I)
stop
end
Õâ¸ö³ÌÐò
5Â¥2012-02-05 16:13:26
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