Texas Instruments TI-89 Tip List page 458

boolean
Applies to variables or conditional (logical) expressions which evaluate to values of true or false. True
and false are boolean constants. A boolean expression combines boolean constants and variables with
boolean operators and evaluates to a boolean constant. Boolean logic is named in honor of the 19th
century English mathematician George Boole, who first formalized this logical system.
brick
Rarely-used slang which refers to the TI92 or TI92+ calculator, because of its large size and weight,
compared to the TI-89.
bug
A flaw or fault in software which causes incorrect results. More specifically, a program has a bug, by
definition, if it returns results which do not meet the specification for the software.
built-in
Describes functions or features which are available in the calculator AMS, without installing other
programs or applications.
C
A high-level language used to write calculator programs. C programs can be faster than TI Basic
programs, and can directly access the calculator hardware and internal operating system functions. C
programs must be written and compiled on a PC, then the object code is downloaded to the calculator
for execution. Two C compilers are available: TIGCC is a third-party free-ware compiler, and TI also
supplies a C compiler with the SDK.
Cabri Geometry
A flash application for the TI-89 and TI-92 Plus which allows editing and analyzing Euclidean
geometrical constructions. Also available as PC-based software as Cabri Geometry II. Cabri Geometry
is free for the TI-92 Plus but not for the TI-89. Cabri Geometry was developed by TI and supports
language localization. See also Geometer's Sketchpad.
CAS
An acronym for computer algebra system. This term refers to the calculator software specifically
concerned with performing symbolic calculations, as opposed to purely numeric calculations.
CBL™
Acronym for 'calculator-based laboratory'. The CBL (a TI product) is a hardware device which connects
to the TI-89/TI-92 Plus (and other calculators) through the GraphLink port. The CBL provides data
acquisition functions and can measure voltage, temperature, frequency and other physical parameters.
CBR™
Acronym for 'calculator-based ranger'. The CBR (a TI product) is a hardware device which connects to
the TI-89 / TI-92 Plus (and other calculators) through the GraphLink port. The CBR uses ultrasonic
ranging to measure the distance between itself an the target.
certificate
A file which is generated by TI. Signed applications (see signing) require a certificate so that they can
run on the calculator. See also SDK.
clipboard
Calculator memory in which cut or copied expressions are temporarily stored. The clipboard contents
can be pasted.
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