Yep, Maxima lacks some useful functions that operate on matrices. Another two of them are _deleting_ rows and columns. I searched through this mail archive from 2001 up to now and haven't found any question concerning the operations. Does this mean that a) maxima users never delete rows/cols, they only add cols/rows, or b) these functions are present but are undocumented, or c) writing these functions should be a primer finger-excersise for any maxima beginner? I had to write them myself, and I attach my code here. Hope somebody will find it useful. (Maybe the chapter 'Definitions for Matrices and Linear Algebra' could be extended?) -- Andrei Zorine Dimitri Pissarenko wrote: > Hello! > > Concerning the determining of the size of matrix: Is it possible that > the description of this feature will be documented in Maxima's > documentation? > > How could I help to do this? > > TIA > > dap >
Attached file: delrowcol.mac