Provided by: liblapack-doc_3.3.1-1_all

**NAME**

LAPACK-3 - the number in D in increasing order (if ID = 'I') or in decreasing order (if ID = 'D' )

**SYNOPSIS**

SUBROUTINE SLASRT( ID, N, D, INFO ) CHARACTER ID INTEGER INFO, N REAL D( * )

**PURPOSE**

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

**ARGUMENTS**

ID (input) CHARACTER*1 = 'I': sort D in increasing order; = 'D': sort D in decreasing order. N (input) INTEGER The length of the array D. D (input/output) REAL array, dimension (N) On entry, the array to be sorted. On exit, D has been sorted into increasing order (D(1) <= ... <= D(N) ) or into decreasing order (D(1) >= ... >= D(N) ), depending on ID. INFO (output) INTEGER = 0: successful exit < 0: if INFO = -i, the i-th argument had an illegal value LAPACK routine (version 3.2) April 2011 SLASRT(3lapack)