Texas Instruments TITANIUM TI-89 - Manual (Page 111)

Previews 111
4. Draw a horizontal line across the top of
the cosine curve.
The calculator remains in “horizontal”
mode until you select a different operation
or press
N.
Press 2 ‰ 5 C (until the line is
positioned) ¸
5. Save a picture of the graph. Use PIC1 as
the variable name for the picture.
Be sure to set Type = Picture . By default, it
is set to GDB .
Press , 2 B 2 D D PIC j 1 ¸
¸
6. Clear the drawn horizontal line.
You can also press † to regraph.
Press 2 ˆ 1
Steps and keystrokes Display