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IRIX 6.2 Development Libraries
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RSM.z
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RSM
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Text File
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1996-03-14
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4KB
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133 lines
____RRRRSSSSMMMM((((3333FFFF)))) ____RRRRSSSSMMMM((((3333FFFF))))
NNNNAAAAMMMMEEEE
RSM, SRSM - EISPACK routine. This subroutine calls the recommended
sequence of subroutines from the eigensystem subroutine package (EISPACK)
to find all of the eigenvalues and some of the eigenvectors of a real
symmetric matrix.
SSSSYYYYNNNNOOOOPPPPSSSSYYYYSSSS
ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee rrrrssssmmmm((((nnnnmmmm,,,, nnnn,,,, aaaa,,,, wwww,,,, mmmm,,,, zzzz,,,, ffffwwwwoooorrrrkkkk,,,, iiiiwwwwoooorrrrkkkk,,,, iiiieeeerrrrrrrr))))
iiiinnnntttteeeeggggeeeerrrr nnnn,,,, nnnnmmmm,,,, mmmm,,,, iiiiwwwwoooorrrrkkkk((((nnnn)))),,,, iiiieeeerrrrrrrr
ddddoooouuuubbbblllleeee pppprrrreeeecccciiiissssiiiioooonnnn aaaa((((nnnnmmmm,,,,nnnn)))),,,, wwww((((nnnn)))),,,, zzzz((((nnnnmmmm,,,,mmmm)))),,,, ffffwwwwoooorrrrkkkk((((1111)))) ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee
ssssrrrrssssmmmm((((nnnnmmmm,,,, nnnn,,,, aaaa,,,, wwww,,,, mmmm,,,, zzzz,,,, ffffwwwwoooorrrrkkkk,,,, iiiiwwwwoooorrrrkkkk,,,, iiiieeeerrrrrrrr))))
iiiinnnntttteeeeggggeeeerrrr nnnn,,,, nnnnmmmm,,,, mmmm,,,, iiiiwwwwoooorrrrkkkk((((nnnn)))),,,, iiiieeeerrrrrrrr
rrrreeeeaaaallll aaaa((((nnnnmmmm,,,,nnnn)))),,,, wwww((((nnnn)))),,,, zzzz((((nnnnmmmm,,,,mmmm)))),,,, ffffwwwwoooorrrrkkkk((((1111))))
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
ON INPUT
NNNNMMMM MUST BE SET TO THE ROW DIMENSION OF THE TWO-DIMENSIONAL AAAARRRRRRRRAAAAYYYY
PARAMETERS AS DECLARED IN THE CALLING PROGRAM DDDDIIIIMMMMEEEENNNNSSSSIIIIOOOONNNN STATEMENT.
NNNN IS THE ORDER OF THE MATRIX A.
AAAA CONTAINS THE REAL SYMMETRIC MATRIX.
MMMM THE EIGENVECTORS CORRESPONDING TO THE FIRST M EIGENVALUES
ARE TO BE COMPUTED.
IF M = 0 THEN NO EIGENVECTORS ARE COMPUTED.
IF M = N THEN ALL OF THE EIGENVECTORS ARE COMPUTED.
ON OUTPUT
WWWW CONTAINS ALL N EIGENVALUES IN ASCENDING ORDER.
ZZZZ CONTAINS THE ORTHONORMAL EIGENVECTORS ASSOCIATED WITH
THE FIRST M EIGENVALUES.
IIIIEEEERRRRRRRR IS AN INTEGER OUTPUT VARIABLE SET EQUAL TO AN ERROR
COMPLETION CODE DESCRIBED IN THE DOCUMENTATION FOR TQLRAT,
IMTQLV AND TINVIT. THE NORMAL COMPLETION CODE IS ZERO.
FFFFWWWWOOOORRRRKKKK IS A TEMPORARY STORAGE ARRAY OF DIMENSION 8*N.
IIIIWWWWOOOORRRRKKKK IS AN INTEGER TEMPORARY STORAGE ARRAY OF DIMENSION N.
QUESTIONS AND COMMENTS SHOULD BE DIRECTED TO BURTON S. GARBOW,
MATHEMATICS AND COMPUTER SCIENCE DIV, ARGONNE NATIONAL LABORATORY
PPPPaaaaggggeeee 1111
____RRRRSSSSMMMM((((3333FFFF)))) ____RRRRSSSSMMMM((((3333FFFF))))
THIS VERSION DATED AUGUST 1983.
PPPPaaaaggggeeee 2222