Operation Manual
Appendix A: Functions and Instructions 372
variance(
list[,freqlist]) Returns the variance of the elements in list with
frequency
freqlist.
y 9
MATH
8:variance(
Vertical
x[,color#,
linestyle#
])
Draws a vertical line at x with specified color and line
style. Color #: 10-24
; line style #: 1-4.
y <
DRAW
4:Vertical
vwAxes
Sets sequence graphs to plot v(n) on the x-axis and
w(n) on the y-axis.
† y .
vw
Web
Sets sequence graphs to trace as webs. † y .
Web
:While
condition
:commands
:End
:
command
Executes commands while condition is true.
†
CTL
5:While
valueA xor valueB Returns 1 if only valueA or valueB = 0. valueA and valueB
can be real numbers, expressions, or lists.
y :
LOGIC
3:xor
ZBox
Displays a graph, lets you draw a box that defines a
new viewing window, and updates the window.
† q
ZOOM
1:ZBox
ZDecimal
Adjusts the viewing window so that TraceStep=0.1,
@
X=0.5 and @Y=0.5, and displays the graph screen with
the origin centered on the screen.
† q
ZOOM
4:ZDecimal
ZFrac 1/2
Sets the window variables so that you can trace in
increments of , if possible. Sets TraceStep to and
@
X and @Y to .
q
ZOOM
B:ZFrac1/2
ZFrac 1/3
Sets the window variables so that you can trace in
increments of , if possible. Sets TraceStep to and
@
X and @Y to .
q
ZOOM
C:ZFrac1/3
ZFrac 1/4
Sets the window variables so that you can trace in
increments of , if possible. Sets TraceStep to and
@
X and @Y to .
q
ZOOM
D:ZFrac1/4
ZFrac 1/5
Sets the window variables so that you can trace in
increments of , if possible. Sets TraceStep to and
@
X and @Y to .
q
ZOOM
E:ZFrac1/5
ZFrac 1/8
Sets the window variables so that you can trace in
increments of , if possible. Sets TraceStep to and
@
X and @Y to .
q
ZOOM
F:ZFrac1/8
F
unction or
Instruction/Arguments
Result
Key or
Keys/Menu or
Screen/Item
1
2
--
1
2
--
1
4
--
1
3
--
1
3
--
1
6
--
1
4
--
1
4
--
1
8
--
1
5
--
1
5
--
1
10
-----
1
8
--
1
8
--
1
16
-----