[Rd] solve( <complex> ) etc

[Martin Maechler]

For porting some (time series related) software from S-plus,
I need  solve() {i.e.  solve.qr() }  to work with complex matrices.

I have had a similar request for this from a local user a while back already.
Till R-1.x.y {at least x=y=0} we have had complex Linpack and BLAS in R's 
sources src/appl/z*.f  but never had an R interface anyway and subsequently
have dropped it.

Should we have a package or a `module' (new in R-1.3) 
for providing complex linear algebra in R?
 
Has anyone done some of the work already?
R-devel readers, thanks for your  support!

Martin Maechler <maechler@stat.math.ethz.ch>	http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum  LEO D10	Leonhardstr. 27
ETH (Federal Inst. Technology)	8092 Zurich	SWITZERLAND
phone: x-41-1-632-3408		fax: ...-1228			<><
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