RREF working, but rref & REF not working?

Hello,

I'm doing some linear algebra. I have a 49g+ with the latest rom. If I
input matrices from my textbook or matrices from the HP49g+ manual
(pages 11-41, 11-42), RREF works, but REF and rref return "bad argument
type".

The matrices are type MATRX in my file manager. I checked my flags in
the HP "advanced users reference manual" and they are good.

Am I doing something wrong, or are these functions broken or
depracated?



Thank you,
Pal

.

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