Texas Instruments TI-Nspire CX CAS TINSPIRE-CX-CAS 产品宣传页

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TINSPIRE-CX-CAS

•

Press

to move from one plot to another. The point’s

coordinates update to reflect the new location of the trace. The trace

cursor is positioned on the point of the new graph or plot with the

closest

x value to the last point identified on the previously traced

function or graph.

•

Type a number and press

to move the trace cursor to the point on

the plot with independent coordinates nearest the typed value.

•

Create a persistent point that remains on the graph by pressing

when the trace point reaches the point you want to label. The point

remains after you exit Graph Trace mode.

Notes:

•

The string

undef is displayed instead of a value when you move over

a point that is not defined for the function (a discontinuity).

•

When you trace beyond the initially visible graph, the screen pans to

show the area being traced.

Press

or choose another tool to exit Graph Trace.

Finding Points of Interest

You can use the tools on the

Analyze Graph

menu to find a point of interest in a

specified range of any graphed function. Choose a tool to find zero, the
minimum or maximum, the point of intersection or inflection, or the numeric
derivative (dy/dx) or Integral on the graph.

Select the point of interest that you want to find on the

Analyze Graph

menu. For example, to find a zero, press

b 6 1

non-CAS

CAS

Zero

b 6 1

Minimum

b 6 2

Maximum

b 6 3

Intersection

b 6 4

Inflection

Not applicable

b 6 5

dy/dx

b 6 5

b 6 6

Integral

b 6 6

b 6 7

Analyze Conics

b 6 7

b 6 8

Using the Scratchpad 33