TI -86 用户手册
56
Chapter 3: Math, Calculus, and Test Operations
03MATH.DOC TI-86, Chap 3, US English Bob Fedorisko Revised: 02/13/01 2:19 PM Printed: 02/13/01 3:00 PM Page 56 of 10
03MATH.DOC TI-86, Chap 3, US English Bob Fedorisko Revised: 02/13/01 2:19 PM Printed: 02/13/01 3:00 PM Page 56 of 10
03MATH.DOC TI-86, Chap 3, US English Bob Fedorisko Revised: 02/13/01 2:19 PM Printed: 02/13/01 3:00 PM Page 56 of 10
valueA
‚
valueB
(greater than or equal to) Returns
1
if valueA is greater than or equal to valueB;
returns
0
if valueA is not greater than or equal to valueB; valueA and valueB must be
real numbers or lists
valueA
ƒ
valueB
(not equal to) Returns
1
if valueA is not equal to valueB; returns
0
if valueA is equal
to valueB; valueA and valueB can be real or complex numbers, lists, vectors,
matrices, or strings
matrices, or strings
Using Tests in Expressions and Instructions
The TI
-86 Evaluation Operating System (Appendix) performs all operations except Boolean
operators before it performs relational functions. For example:
♦
The expression
2+2==2+3
evaluates to
0
. The TI
-86 performs the addition first, and then
compares 4 to 5.
♦
The expression
2+(2==2)+3
evaluates to
6
. The TI
-86 performs the test in parentheses
first, and then adds 2, 1, and 3.
You can use relational
functions to control program
flow (Chapter 16).
functions to control program
flow (Chapter 16).