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43 lines
1003 B
43 lines
1003 B
C Copyright(C) 1999-2020 National Technology & Engineering Solutions
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C of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
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C NTESS, the U.S. Government retains certain rights in this software.
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C
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C See packages/seacas/LICENSE for details
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C=======================================================================
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SUBROUTINE MXIDEN(N,MAT)
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REAL MAT(N,*)
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IF (N .EQ. 4) THEN
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MAT(1,1) = 1.0
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MAT(1,2) = 0.0
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MAT(1,3) = 0.0
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MAT(1,4) = 0.0
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MAT(2,1) = 0.0
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MAT(2,2) = 1.0
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MAT(2,3) = 0.0
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MAT(2,4) = 0.0
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MAT(3,1) = 0.0
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MAT(3,2) = 0.0
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MAT(3,3) = 1.0
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MAT(3,4) = 0.0
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MAT(4,1) = 0.0
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MAT(4,2) = 0.0
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MAT(4,3) = 0.0
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MAT(4,4) = 1.0
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ELSE
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DO 2930 I = 1,N
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DO 2950 J = 1,N
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MAT(I,J) = 0.
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2950 CONTINUE
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2930 CONTINUE
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DO 2970 I = 1,N
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MAT(I,I) = 1.
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2970 CONTINUE
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end if
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RETURN
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END
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