Modules for
Differential
Calculus
Maple Tutor
Part 2: Groups
and Separators
- Press the F9 key.
Then
press it again. (Watch the left margin.) This key alternately inserts
and
deletes margin indicators that separate the Maple worksheet
into
groups. If necessary, press F9 again so that the separator lines are
visible.
- Place the cursor in
the
line
2*3;
and press the F4 key. Notice that a separator has been
removed
-- that is, the line following this one has now become part of the same
group. Now press the RETURN key. Both expressions in the region are
calculated.
Place the cursor at the start of the second line in this group and
press
the F3 key. The groups are separated again. Now press RETURN. Only the
single line in the region is evaluated.
Usually you will want
the
group separators to be visible. The F9 key toggles in and out of this
mode.
The F4 key joins groups above and below the line containing the cursor;
the F3 key separates a group into two groups at the cursor.
