Graphics Programs Reference
In-Depth Information
Figure6-1: A SimpleM-Book.
Working with M-Books
You interact withdata in your M-book in two ways — via the keyboard or
through the menu bar.
Editing Input
Place your cursor in the line containing the second command of the previous
section — where we solved the quadratic equation
x
2
−
5
x
+
5
=
0
.
Click to the left of the equal sign, hit
BACKSPACE
, type
6
(that is, replace the
second
5
by a
6
), and press
CTRL+ENTER
. You will see your output replaced by
ans =
[2]
[3]
By changing the quadratic equation we have altered its roots. You can edit
any of the input lines in your M-book in this way, including the one that
generated the graph. See what happens if you click in the
ezplot
command
line, change the cubic expression, and press
CTRL+ENTER
.
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