Texas Instruments TI-83 PLUS - Manual (Page 105)

TI-83 Plus Math, Angle, and Test Operations 102
valueA = valueB valueA ƒ valueB
valueA > valueB valueA ‚ valueB
valueA < valueB valueA  valueB
Using Tests
Relational operators are evaluated after mathematical functions
according to EOS rules (Chapter 1).
•
The expression 2+2=2+3 returns 0 . The TI-83 Plus performs the
addition first because of EOS rules, and then it compares 4 to 5.
•
The expression 2+(2=2)+3 returns 6 . The TI-83 Plus performs the
relational test first because it is in parentheses, and then it adds 2, 1,
and 3.