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                DIMENSION C(4,5), X(4)
        REAL *8 C
        READ(*,*) M
        WRITE(*,10) M
        N=M+1
        DO 2 I=1,M
2        READ(*,*) (C(I,J), J=1,N)
        WRITE(*,11)
        DO 3 I=1,M
3        WRITE(*,13) (C(I,J),J=1,N)
        CALL SIMUL(M,N,C,X)
        WRITE(*,12)
        DO 1 J=1,M
1        WRITE(*,14) X(J)
10        FORMAT(1X,'1','M=',I5)
11        FORMAT(//,1X,'COEFFICIENT MATRIX=',/)
12        FORMAT(//,1X,'SOLUTION VECTOR=',/)
13        FORMAT(8F10.4)
14        FORMAT(F15.4)
        STOP
        END


        SUBROUTINE SIMUL(M,N,C,X)
        IMPLICIT REAL*8 (A-H,O-Z)
        REAL*4X
        DIMENSION C(4,5),X(4)
        DO 1 K=1,M
        PIVOT=C(K,K)
        IF(DABS(PIVOT).LE.0.001) GOTO 2
        DO 3 J=K,N
3        C(K,J)=C(K,J)/PIVOT
        DO 4 I=1,M
        IF(I.EQ.K) GOTO 4
        PIVI=C(I,K)
        DO 5 J=K,N
5        C(I,J)=C(I,J)-PIVI*C(K,J)
4        CONTINUE
1        CONTINUE
        DO 6 J=1,M
6        X(J)=C(J,N)
        RETURN
       
2        WRITE(*,100) K
100        FORMAT(1X,'PIVOT ELEMENT',I5,1X,'IS CLOSE TO 0')
        RETURN
        END
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1M=          4
.47
0
-.012
-1
0
0
.92
0
-1.7857
5
.49
0
-.73
0
5
0
.08
-.01
2.5
990


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nono2009(½ð±Ò+3,VIP+0):ÎÞÓï¡£ 11-24 19:40
nono2009(½ð±Ò+0,VIP+0):Perfect. 11-24 20:51
Ê×ÏÈÓиö´íÎó REAL*4X XÇ°ÃæÓ¦¸ÃÓиö¿Õ¸ñ
READ(*,*) (C(I,J), J=1,N)ÊÇÐèÒª´Ó¼üÅÌÊäÈëÊý¾Ý Äã¿ÉÒÔ°Ñ .47µ½990ÕâÒ»¶Î¸´ÖÆÏÂÀ´ ÔÚ³ÌÐòÔËÐнçÃæµÄ×îÉÏ·½À¶É«¿éÓÒ»÷ Ñ¡Ôñ ±à¼­--Õ³Ìù
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open(41,file='data.txt')
READ(41,*) (C(I,J), J=1,N)
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