C SYLIN2    SOURCE    CHAT      05/01/13    03:28:40     5004
      SUBROUTINE SYLIN2(A,B,X1,X2)
      IMPLICIT INTEGER(I-N)
      IMPLICIT REAL*8(A-H,O-Z)
      DIMENSION A(4),B(2)
C
C-----------------------------------------------
C     RESOLUTION 2 EQUATIONS DEUX INCONNUES
C-----------------------------------------------
C
      DET=A(1)*A(4)-A(2)*A(3)
      DET1=B(1)*A(4)-B(2)*A(2)
      DET2=B(2)*A(1)-B(1)*A(3)
      X1=DET1/DET
      X2=DET2/DET
      RETURN
      END