HP49-50G : Matrix & Strings

[Gil]

Understood.

Thanks.

I was trying to create a square Matrix M on the EMU48
.
Then to "transfer" it, with a appropriate string on the stack, to the command line of the Maxima software.
Then, in Maxima, after pressing ENTER and getting the M Matrix, with its correct format,
I execute minv : invert (%).

And transfer this inverted Matrix into HP50G Stack.

From the appropriate conversion of the string on the stack,
(with a special program)
I multiply the resulting Matrix b, by the former, original Matrix.

I get, with some discrepancies, the identity Matrix.

With the trouble of the minus sign when elements are fractions.

Regards