1DLASRT(1)                LAPACK routine (version 3.1)                DLASRT(1)
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NAME

6       DLASRT - number in D in increasing order (if ID = 'I') or in decreasing
7       order (if ID = 'D' )
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SYNOPSIS

10       SUBROUTINE DLASRT( ID, N, D, INFO )
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12           CHARACTER      ID
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14           INTEGER        INFO, N
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16           DOUBLE         PRECISION D( * )
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PURPOSE

19       Sort the numbers in D in increasing order (if ID = 'I') or in  decreas‐
20       ing order (if ID = 'D' ).
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22       Use Quick Sort, reverting to Insertion sort on arrays of
23       size <= 20. Dimension of STACK limits N to about 2**32.
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ARGUMENTS

27       ID      (input) CHARACTER*1
28               = 'I': sort D in increasing order;
29               = 'D': sort D in decreasing order.
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31       N       (input) INTEGER
32               The length of the array D.
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34       D       (input/output) DOUBLE PRECISION array, dimension (N)
35               On  entry,  the array to be sorted.  On exit, D has been sorted
36               into increasing order (D(1) <= ... <= D(N) ) or into decreasing
37               order (D(1) >= ... >= D(N) ), depending on ID.
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39       INFO    (output) INTEGER
40               = 0:  successful exit
41               < 0:  if INFO = -i, the i-th argument had an illegal value
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45 LAPACK routine (version 3.1)    November 2006                       DLASRT(1)