User`s guide

Submatrix
5-423
The Row, Column, Starting row or Starting column can be specified in six
ways:
•
First
For rows, this specifies that the first row of u should be used as the first row
of
y. If all columns are to be included, this is equivalent to y(1,:) = u(1,:).
For columns, this specifies that the first column of
u should be used as the
first column of
y. If all rows are to be included, this is equivalent to
y(:,1) = u(:,1).
•
Index
For rows, this specifies that the row of u, firstrow, forward-indexed by the
Row index parameter or the Starting row index parameter, should be used
as the first row of
y. If all columns are to be included, this is equivalent to
y(1,:) = u(firstrow,:).
For columns, this specifies that the column of
u, forward-indexed by the
Column index parameter or the Starting column index parameter,
firstcol, should be used as the first column of y. If all rows are to be
included, this is equivalent to
y(:,1) = u(:,firstcol).
•
Offset from last
For rows, this specifies that the row of u offset from row M by the Row offset
or Starting row offset parameter, firstrow, should be used as the first row
of
y. If all columns are to be included, this is equivalent to
y(1,:) = u(M-firstrow,:).
For columns, this specifies that the column of
u offset from column N by the
Column offset or Starting column offset parameter, firstcol, should be
used as the first column of
y. If all rows are to be included, this is equivalent
to
y(:,1) = u(:,N-firstcol).
•
Last
For rows, this specifies that the last row of u should be used as the only row
of
y. If all columns are to be included, this is equivalent to y = u(M,:).
For columns, this specifies that the last column of
u should be used as the
only column of
y. If all rows are to be included, this is equivalent to
y = u(:,N).
•
Offset from middle
For rows, this specifies that the row of u offset from row M/2 by the Starting
row offset
parameter, firstrow, should be used as the first row of y. If all