EasyManuals Logo
Home>Texas Instruments>Calculator>TI-89

Texas Instruments TI-89 Tip List

Texas Instruments TI-89
507 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #308 background imageLoading...
Page #308 background image
A typical appsdef matrix might look like this:
"RTD385()""rtdeqs""RTD resistance"
"spline()""cubspline""Cubic spline"
"vdiv()""voltdiv""Voltage divider solver"
c3c2c1
For example, the program vdiv() is located in folder voltdiv. The description that will be shown in the
pop-up box is "Voltage divider solver".
The second application launcher
Daniel's application launcher looks like this:
kbdprgm1()
Prgm
setFold(main)
Local a
PopUp mat>list(pmat[1]),a
expr(pmat[2,a])
EndPrgm
Since the program is named kbdprgm1, it can be launched from any folder by pressing [DIAMOND] [1].
You could also rename my apps() program to kbdprgm1, with the same effect.
In this program, the application information is saved in a 2-row matrix called pmat. One column is used
for each application. For the example applications above, pmat looks like this:
"rtdeqs\RTD385()""cubspline\spline()""voltdiv\vdiv()"
"RTD resistance""Cubic Spline""Voltage divider solver"
c3c2c1
The first row shows the text that will appear in the pop-up menu. The second row specifies the folder
and the application name, including the parentheses.
Daniel's launcher requires a simpler matrix to save the application information. Also, since he saves
the pop-up menu items as the row of the matrix, instead of the column, he can simply use
PopUp mat>list(pmat[1]),a
to create the pop-up menu, since pmat[1] accesses the entire first row of the matrix. Daniel's launcher
is also smaller because he doesn't set the folder to \main after the application executes. This isn't really
necessary, but you can add it, if you want it.
(Credit for second method to Daniel Lloyd)
7 - 19

Table of Contents

Other manuals for Texas Instruments TI-89

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Texas Instruments TI-89 and is the answer not in the manual?

Texas Instruments TI-89 Specifications

General IconGeneral
Display size (HxV)100 x 160 mm
Memory type639K FLASH ROM, 188K bytes RAM
Compatible operating systemsOperating System 2.09
Battery typeAAA

Related product manuals