Operation Manual

TI-83 Plus Math, Angle, and Test Operations 101
TEST (Relational) Operations
TEST Menu
To display the
TEST
menu, press
y :
.
This operator... Returns 1 (true) if...
TEST LOGIC
1:
=
Equal
2:
ƒ
Not equal to
3:
>
Greater than
4:
‚
Greater than or equal to
5:
<
Less than
6:

Less than or equal to
=,
ƒ
, >,
‚
, <,

Relational operators compare
valueA
and
valueB
and return
1
if the test is
true or
0
if the test is false.
valueA
and
valueB
can be real numbers,
expressions, or lists. For
=
and
ƒ
only,
valueA
and
valueB
also can be
matrices or complex numbers. If
valueA
and
valueB
are matrices, both
must have the same dimensions.
Relational operators are often used in programs to control program flow
and in graphing to control the graph of a function over specific values.