Re: Source Code for IMSL Routine LLBQF (Linear Least Squares - High Accuracy)

clusardi2k@xxxxxxx wrote: 
For a friend, I am looking for information on the following subroutine,

particularly a code listing:


Within the IMSL Math Library (Circa 1980) there is a subroutine,
LLBQF().


Searching hotbot gave me:


imsl/LLBQF SOLUTION OF LINEAR LEAST SQUARES PROBLEM - HIGH
ACCURACY SOLUTION


Thank you, Christopher Lusardi


I imagine the code listing is (a) not available, and (b) proprietry, so you couldn't use the source code without permission even if you had it.

However, the interface to the subroutine should be publically available, and it should tell you enough that you can find a suitable replacement routine -- for instance, in LAPACK. It's worth noting that many of the IMSL routines are repackaged or reimplemented netlib routines.

cheers,

Rich
.

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