On Thu, 31 Jul 2008, Allin Cottrell wrote:
However, it's a little more complicated. Until recently we
continued to support x**n = x^n unofficially, since it's handy in
dealing with the NIST nonlinear regression test files, where the
functions are written in that way. I wonder if that's now broken?
Memory lapse. I'd already fixed the NIST nls test suite so as to
substitute "^" for "**". So, even unofficially, "**" is not
in
any way supported as exponential operator.
I've removed the misleading statement from the matrices chapter of
the Guide in CVS.
Allin.