|Re: 50G Edat register loading|
Message #2 Posted by Norris on 17 Sept 2007, 5:44 p.m.,
in response to message #1 by Hal Bitton in Boise
I don't think you can actually do anything with a matrix that is loaded into the MatrixWriter, except edit it. I think you have to exit the MatrixWriter environment before you can save the matrix to EDAT (or anywhere else). The HP-50G apparently feels that a matrix is still a work in progress as long as MatrixWriter is open, so it won't let you store the matrix until MatrixWriter is closed.
Once you've left the MatrixWriter and the completed matrix is on the stack, you can store it in EDAT with [left-shift] EDAT, or by invoking STOE from CAT (it's the last STO command), or by typing STOE ENTER (use CHARS ECHO1 for the Sigma). But none of these approaches seem to work while you're in the MatrixWriter.
Technically, it is possible to bring up an EDAT softkey within the MatrixWriter, by typing 96 MENU, then hitting ENTER and DATA. Or you could create a custom menu with EDAT or STOE softkeys, and then bring up your custom menu within the MatrixWriter. But if you try this, you will soon learn that the softkeys will only address the contents of the stack, even though the stack is not visible. The softkeys will not pay any attention to the contents of the MatrixWriter, even when they have been opened in the MatrixWriter environment.
I know of one other approach. You can enter the MatrixWriter Environment through [right-shift] STAT ENTER (to select the "single var" option) EDIT. After entering one or two columns of data, you can press ENTER ENTER to exit. If you go in and out of the MatrixWriter this way, your new matrix will automatically be saved into EDAT.
Edited: 18 Sept 2007, 12:33 p.m.