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6-10 Sequence Graphing
8306SEQN.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:22 PM Printed: 02/19/01 1:36
PM Page 10 of 16
ZOOM
operations in Seq graphing work the same as in
Func graphing. Only the X (Xmin, Xmax, and Xscl) and Y
(Ymin, Ymax, and Yscl) window variables are affected.
PlotStart, PlotStep,
n
Min, and
n
Max are only affected when
you select
ZStandard. The
VARS Zoom
secondary menu
ZU
items 1 through 7 are the
ZOOM MEMORY
variables for Seq
graphing.
The only
CALC
operation available in Seq graphing is value.
•
When
Time axes format is selected, value displays Y (the
u(
n
) value) for a specified
n
value.
•
When
Web axes format is selected, value draws the web
and displays Y (the u(
n
) value) for a specified
n
value.
•
When
uv, vw, or uw axes format is selected, value
displays X and Y according to the axes format setting.
For example, for uv axes format, X represents u(
n
) and
Y represents v(
n
).
To enter the sequence names
u, v, or w, press
y
[
u
], [
v
], or
[
w
]. You can evaluate these names in any of three ways.
•
Calculate the
n
th value in a sequence.
•
Calculate a list of values in a sequence.
•
Generate a sequence with u(
nstart
,
nstop
[,
nstep
]).
nstep
is optional; default is 1.
ZOOM
CALC
Evaluating u, v,
and w