2.26 Math, Angle, and Test Operations
82STAT~4.DOC TI-83 international English Bob Fedorisko Revised: 10/28/05 12:19 PM Printed: 10/28/05 12:20
PM Page 26 of 26
82STAT~4.DOC TI-83 international English Bob Fedorisko Revised: 10/28/05 12:19 PM Printed: 10/28/05 12:20
PM Page 26 of 26
To display the TEST LOGIC menu, press y ãTESTä ~.
This operator... Returns a 1 (true) if...
TEST LOGIC
1: and Both values are nonzero (true).
2: or At least one value is nonzero (true).
3: xor Only one value is zero (false).
4: not( The value is zero (false).
Boolean operators are often used in programs to control
program flow and in graphing to control the graph of the
function over specific values. Values are interpreted as zero
(false) or nonzero (true).
and, or, and xor (exclusive or) return a value of 1 if an
expression is true or
0 if an expression is false, according to the
table below. valueA and valueB can be real numbers,
expressions, or lists.
valueA
and valueB
valueA
or valueB
valueA
xor valueB
valueA valueB and or xor
ƒ0 ƒ0 returns 110
ƒ0 0 returns 011
0 ƒ0 returns 011
0 0 returns 000
not(
returns 1 if value (which can be an expression) is 0.
not(value)
Boolean logic is often used with relational tests. In the following
program, the instructions store
4 into C.
TEST LOGIC (Boolean) Operations
TEST LOGIC
Menu
Boolean
Operators
and,
or,
xor
not(
Using Boolean
Operations
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