Reduced row echelon form: Difference between revisions

m
→‎{{header|REXX}}: adjusted an error message.
(→‎{{header|J}}: Add code from addon script)
m (→‎{{header|REXX}}: adjusted an error message.)
Line 3,042:
do c=1 for cols
if @.r.c=='' then do; say "***error*** matrix element isn't defined:"
say 'row' row r", column" c'.'; exit 13
end
_=_ right(@.r.c, w)