Texas Instruments TI-86 - Manual (Page 68)

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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 ƒvalueB (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
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).