Texas Instruments TI-89 사용자 설명서
Basic Function Graphing
321
Tracing a Function
Tracing a Function
Tracing a Function
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
Beginning a Trace
Beginning a Trace
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.
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.
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
Moving along a Function
Moving along a Function
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)
(it may be more or less than 5,
depending on the xres Window variable)
Press
2 A
or
2 B
.