Basic Function Graphing
307
Tracing a Function
To display the exact coordinates of any plotted point on a graphed function, use the
…
Trace
tool. Unlike the free-moving cursor, the trace cursor moves only along a function’s
plotted points.
Beginning a Trace
From the Graph screen, press
…
.
The trace cursor appears on the function, at the middle x value on the screen. The
cursor’s coordinates are displayed at the bottom of the screen.
If multiple functions are graphed, the trace cursor appears on the lowest-numbered
function selected in the Y= Editor. The function number is shown in the upper right part
of the screen.
If any stat plots are graphed, the trace cursor appears on the lowest-numbered stat plot.
Moving along a Function
To move the trace cursor:
Do this:
To the previous or next plotted point
Press
A
or
B
.
Approximately 5 plotted points
(it may be more or less than 5,
depending on the
xres
Window variable)
Press
2 A
or
2 B
.
Summary of Contents for Titanium TI-89
Page 9: ...Getting Started 6 TI 89 Titanium keys Ë Ì Í Ê ...
Page 34: ...Getting Started 31 2 or D 2 B u s i n e s s D B D B Press Result ...
Page 43: ...Getting Started 40 3 0 D B D D B D Press Result ...
Page 44: ...Getting Started 41 D 2 0 0 2 D B Scroll down to October and press Press Result ...
Page 58: ...Getting Started 55 Example Set split screen mode to TOP BOTTOM Press Result 3 B D ...
Page 70: ...Getting Started 67 ...
Page 175: ...Operating the Calculator 172 From the Keyboard ...
Page 456: ...Tables 453 ...
Page 527: ...Data Matrix Editor 524 ...
