Texas Instruments TI-89 Tip List

1:setmode("14","Auto")
2:setmode("14","Exact")
3:setmode("14","Approximate")
If you switch modes often, this type of menu is faster than using the MODE menu. Using the MODE
menu takes at least 7 keystrokes. The Custom menu method requires 3 keystrokes. However, the
Custom menu method unnecessarily leaves the commands in the history display. You need to press
[ENTER] after selecting the menu item, which is just one more keystroke. Finally, the appearance of
the menu items is rather poor in that all the SetMode() details are displayed. Still, it is an improvement
over using the [MODE] key and cursor control keys to make a simple mode change.
(Credit for use of code strings declined)
[7.29] Table of getConfg() list elements
The getConfg() function can be useful in programs when you need to determine system information.
For example, you might want to check the free RAM before creating a large variable, or you may want
to check the amount of archive memory available, before your program archives a large variable. This
type of information is easily extracted from the list that getConfg() returns. For example, if no
certificates have been installed, then the free RAM in bytes is returned by
getConfg()[20]. The table
below simply shows the indices for the list, since this information is not explicitly listed in the user's
manual.
583,34826
"Free Archive"25
655,360583,34824
"Archive Size""Free Archive"23
183,044655,36022
"Free RAM""Archive Size"21
262,132183,04420
"RAM Size""Free RAM"19
91262,13218
"Window Height""RAM Size"17
2409116
"Window Width""Window Height"15
12824014
"Screen Height""Window Width"13
24012812
"Screen Width""Screen Height"11
024010
"Cert. Rev. #""Screen Width"9
"011DC 9FC31 D63A""011DC 9FC31 D63A"8
"ID #""ID #"7
"01-1-9-4C""01-1-9-4C"6
"Product ID""Product ID"5
"2.05, 07/05/2000""2.05, 07/05/2000"4
"Version""Version"3
"Advanced Mathematics Software"Advanced Mathematics Software2
"Product Name""Product Name"1
Certificates installed:No certificates installed:Index
7 - 28

Texas Instruments TI-89 Specifications

General

Display size (HxV)	100 x 160 mm
Memory type	639K FLASH ROM, 188K bytes RAM
Compatible operating systems	Operating System 2.09
Battery type	AAA