Texas Instruments TI-89 User Manual - Page 941
EOS (Equation Operating System) Hierarchy, Table, Data/Matrix, Miscellaneous, Solver
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Table tblStart @tbl tblInput Data/Matrix c1-c99 sysData* Miscellaneous main ok errornum Solver eqn* exp* EOS (Equation Operating System) Hierarchy This section describes the Equation Operating System (EOSé) that is used by the TI-89 Titanium / Voyage™ 200. Numbers, variables, and functions are entered in a simple, straightforward sequence. EOS evaluates expressions and equations using parenthetical grouping and according to the priorities described below. Order of Evaluation Leve Operator l 1 Parentheses ( ), brackets [ ], braces { } 2 Indirection (#) 3 Function calls 4 Post operators: degrees-minutes-seconds (°,',"), factorial (!), percentage (%), radian (ô), subscript ([ ]), transpose (î) 5 Exponentiation, power operator (^) 6 Negation (ë) 7 String concatenation (&) 8 Multiplication (ù), division (/) 9 Addition (+), subtraction (ì) 10 Equality relations: equal (=), not equal (ă or /=), less than (=) 11 Logical not 12 Logical and 13 Logical or, exclusive logical xor Appendix B: Technical Reference 942