Texas Instruments TI-89 Manual Book page 471

getType()
CATALOG
getType(var)
Returns a string indicating the data type of
variable
If has not been defined, returns the string
var
" ".
NONE
Data Type
"ASM"
"DATA"
"EXPR"
"FUNC"
"GDB"
"LIST"
"MAT"
"NONE"
"NUM"
"OTHER"
"PIC"
"PRGM"
"STR"
"TEXT"
"VAR"
getUnits()
CATALOG
getUnits()
Returns a list of strings that contain the
current default units for all categories except
constants, temperature, amount of substance,
luminous intensity, and acceleration.
the form:
{" " "
system
The first string gives the system (
or
CUSTOM
a category (such as Length) and its default
unit (such as _m for meters).
To set the default units, use
454 Appendix A: Functions and Instructions
string
.
var
Variable Contents
Assembly-language program
Data type
Expression (includes complex/arbitrary/undefined,
FALSE, pi, e)
Function
Graph data base
List
Matrix
Variable does not exist
Real number
Miscellaneous data type for future use by software applications
Picture
Program
String
Text type
Name of another variable
list
" " " " " "
cat1 unit1 cat2 unit2
). Subsequent pairs of strings give
setUnits()
{1,2,3}! temp ¸
getType(temp) ¸
2+3i! temp ¸
getType(temp) ¸
DelVar temp ¸
getType(temp) ¸
getUnits() ¸
has
list
Note: Your screen may display different
default units.
" ...}
SI , ENG/US ,
.
{1 2 3}
"LIST"
2 + 3i
"EXPR"
Done
"NONE"
ˆ ˆ
, ë
, TRUE,
{"SI" "Area" "NONE"
"Capacitance" "_F"
"Charge" "_coul"
... }