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2007 Sep 03
2
Row-Echelon Form
I was looking for an R-package that would reduce matrices to
row-echelon form, but Google was not my friend; any leads?
If not, I wonder if the problem could be expressed in terms of
constraint satisfaction...
2005 Jan 07
3
Basic Linear Algebra
I don't normally have to go anywhere near this stuff , but it seems to me that this should be a straight-forward process in R.
For the purposes of this enquiry I thought I would use something I can work out on my own.
So I have my matrix and the right hand results from that matrix
tdata <- matrix(c(0,1,0,-1,-1,2,0,0,-5,-6,0,0,3,-5,-6,1,-1,-1,0,0),byrow = T,ncol = 5)
sumtd <-
2010 Mar 17
0
getting text being entered into an FXTable cell
...get, and when the contents
of a cell is being edited, I want to anticipate what the user wishes to
enter (by matching the text with a previous entry), and present that for
completion. (This is similar to how Excel works.) I''ve attempted to do
this by using the FXTable getItem(currentRow, currentColumn).text method
when a SEL_KEYRELEASE message is received, but this gets the previous text
of the cell, rather than the text that is currently being entered.
I could of course collect the keys pressed in response to SEL_KEYRELEASE
in a private buffer, but this would mean I would have to do complicate...