Справочник Пользователя для Texas Instruments TI-89
Programming
604
Entering a Test Operator
Entering a Test Operator
Entering a Test Operator
Entering a Test Operator
•
Type the operator directly from the keyboard.
– or –
– or –
Relational Tests
Relational Tests
Relational Tests
Relational Tests
Relational operators let you define a conditional test that compares two values. The
values can be numbers, expressions, lists, or matrices (but they must match in type and
dimension).
values can be numbers, expressions, lists, or matrices (but they must match in type and
dimension).
•
Press
2 I and select
8:Test
. Then
select the operator from the menu.
– or –
•
Display the built-in functions. Press:
½The test operators are listed near
the bottom of the
½The test operators are listed near
the bottom of the
„ Built-in menu.
Operator
True if:
Example
>
Greater than
a>8
<
Less than
a<0
|
Greater than or equal to
a+b
|
100
{
Less than or equal to
a+6
{
b+1
=
Equal
list1=list2
ƒ
Not equal to
mat1
ƒ
mat2