Setfold(), Setgraph(), 870 appendix a: functions and instructions – Texas Instruments TITANIUM TI-89 User Manual

Page 870

Advertising
background image

870

Appendix A: Functions and Instructions

setFold()

CATALOG

setFold(

newfolderName

)

oldfolderString

Returns the name of the current folder as a string
and sets

newfolderName

as the current folder.

The folder

newfolderName

must exist.

newFold chris

¸

Done

setFold(main)

¸

"chris"

setFold(chris)! oldfoldr

¸

"main"

1! a

¸

1

setFold(#oldfoldr)

¸

"chris"

a

¸

a

chris\a

¸

1

setGraph()

CATALOG

setGraph(

modeNameString

,

settingString

)

string

Sets the

Graph

mode

modeNameString

to

settingString

, and returns the previous setting of

the mode. Storing the previous setting lets you
restore it later.

modeNameString

is a character string that specifies

which mode you want to set. It must be one of
the mode names from the table below.

settingString

is a character string that specifies the

new setting for the mode. It must be one of the
settings listed below for the specific mode you
are setting.

setGraph("Graph Order","Seq")
¸

"SEQ"

setGraph("Coordinates","Off")
¸

"RECT"

Note: Capitalization and blank spaces are
optional when entering mode names.

Mode Name

Settings

"Coordinates"

"Rect", "Polar", "Off"

"Graph Order"

"Seq", "Simul"

1

"Grid"

"Off", "On"

2

"Axes"

"Off", "On"

(not 3D graph mode)

"Off", "Axes", "Box"

(3D graph mode)

"Leading Cursor"

"Off", "On"

2

"Labels"

"Off", "On"

"Style"

"Wire Frame", "Hidden Surface", "Contour Levels", "Wire and Contour",
"Implicit Plot"

3

"Seq Axes"

"Time", "Web", "U1-vs-U2"

4

"DE Axes"

"Time", "t-vs-y' ", "y-vs-y' ", "y1-vs-y2", "y1-vs-y2' ", "y1'-vs-y2' "

5

Tip: To type a prime symbol ( ' ), press 2

È

.

"Solution Method"

"RK", "Euler"

5

"Fields"

"SlpFld", "DirFld", "FldOff"

5

“Discontinuity
Detection”

“Off’, “On”

6

1

Not available in Sequence, 3D, or Diff Equations graph mode. Also not available in Function graph mode

with “Discontinuity Detection” set to “On.”

2

Not available in 3D graph mode.

Advertising