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- ____EEEELLLLMMMMHHHHEEEESSSS((((3333FFFF)))) ____EEEELLLLMMMMHHHHEEEESSSS((((3333FFFF))))
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- NNNNAAAAMMMMEEEE
- elmhes, selmhes - EISPACK routine. Given a REAL GENERAL matrix, this
- subroutine reduces a submatrix situated in rows and columns LOW through
- IGH to upper Hessenberg form by stabilized elementary similarity
- transformations.
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- SSSSYYYYNNNNOOOOPPPPSSSSYYYYSSSS
- ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee eeeellllmmmmhhhheeeessss((((nnnnmmmm,,,, nnnn,,,, lllloooowwww,,,, iiiigggghhhh,,,, aaaa,,,, iiiinnnntttt))))
- iiiinnnntttteeeeggggeeeerrrr nnnnmmmm,,,, nnnn,,,, lllloooowwww,,,, iiiigggghhhh,,,, iiiinnnntttt((((iiiigggghhhh))))
- ddddoooouuuubbbblllleeee pppprrrreeeecccciiiissssiiiioooonnnn aaaa((((nnnnmmmm,,,,nnnn))))
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- ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee sssseeeellllmmmmhhhheeeessss((((nnnnmmmm,,,, nnnn,,,, lllloooowwww,,,, iiiigggghhhh,,,, aaaa,,,, iiiinnnntttt))))
- iiiinnnntttteeeeggggeeeerrrr nnnnmmmm,,,, nnnn,,,, lllloooowwww,,,, iiiigggghhhh,,,, iiiinnnntttt((((iiiigggghhhh))))
- rrrreeeeaaaallll aaaa((((nnnnmmmm,,,,nnnn))))
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- On INPUT
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- NNNNMMMM must be set to the row dimension of two-dimensional array parameters
- as declared in the calling program dimension statement.
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- NNNN is the order of the matrix.
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- LLLLOOOOWWWW and IGH are integers determined by the balancing subroutine BALANC.
- If BALANC has not been used, set LOW=1, IGH=N.
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- AAAA contains the input matrix. On OUTPUT
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- AAAA contains the Hessenberg matrix. The multipliers which were used in the
- reduction are stored in the remaining triangle under the Hessenberg
- matrix.
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- IIIINNNNTTTT contains information on the rows and columns interchanged in the
- reduction. Only elements LOW through IGH are used. Questions and
- comments should be directed to B. S. Garbow, APPLIED MATHEMATICS
- DIVISION, ARGONNE NATIONAL LABORATORY
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- PPPPaaaaggggeeee 1111
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