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    program ganeiliwucha
                implicit none
        External FS
        Integer I,L,N
        Dimension X(2),Y(2),C(2)
        Double Precision X, Y, EPS,C
        open (2000, file='test.dat', status='old' )
        Data X/0.00,0.01/
           EPS=1.0E-06
        CALL DSNSE(2,EPS, X, Y, FS, L)
        IF(L.GT.0)then
       C(1)=cos(X(2))/sin(X(1)+X(2))*tan(20.0/180*3.14)-1.0   ! AC¸ËµÄÄÚÁ¦Îó²î
    C(2)=cos(X(1))/sin(X(1)+X(2))*sin(20.0/180*3.14)-1.0   ! BC¸ËµÄÄÚÁ¦Îó²î
        do I=1,2
    write(2000,*) X(I)
        end do
    end IF
        close(2000)
        end

        SUBROUTINE DSNSE(N,EPS,X,Y,FS,L)
        DIMENSION X(N),Y(N)
        DOUBLE PRECISION X,Y,F,D,S
        L=500
5        CALL FS(X,N,F,Y)
        IF (F.GE.EPS) THEN
          L=L-1
          IF (L.EQ.0) RETURN
          D=0.0
          DO 20 J=1,N
20          D=D+Y(J)*Y(J)
          IF (D+1.0.EQ.1.0) THEN
            L=-1
            RETURN
          END IF
          S=F/D
          DO 30 I=1,N
30          X(I)=X(I)-S*Y(I)
          GOTO 5
        END IF
        RETURN
        END

    SUBROUTINE FS(X, N, F, Y)
        DIMENSION X(N), Y(N)
        Double precision X,Y,F,F1,F2,DF1,DF2,A,B
          A=20.0/180*3.14                           
          K=0.5
          F1=X(1)+X(2)-cos(A)
          F2=sin(X(1))*cos(A)*(1+K*cotan(A))+SIN(X(2))*(1.0-K/sin(A))-cos(A)
          F=F1*F1+F2*F2
          DF1=1.0
          DF2=cos(X(1))*cos(A)*(1+K*cotan(A))
          Y(1)=2.0*(F1*DF1+F2*DF2)
          DF1=1.0
          DF2=COS(X(2))*(1.0-K/sin(A))
          Y(2)=2.0*(F1*DF1+F2*DF2)
    RETURN
        END

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jjdg(½ð±Ò+1): ¸ÐлӦÖú 2012-02-20 01:39:55
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write(2000,*) X(I)

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