Texas Instruments TI86 User Manual - Page 421
F, Equation Operating System
UPC - 033317192342
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element matrix, 181 ellipsis at end of line, 19 in matrix row, 179 Else, 218, 306 e-mail address (TI Customer Support), 392 End, 218, 290, 297, 306 Eng (engineering notation), 34, 20, 290 entry executing, 19 storing to, 29 entry cursor, 18, 22, 23 [ENTRY] key, 19 ENTRY Storage Area, 28, 29 EOS. See Equation Operating System Eq4St( (equation to string), 227, 290 eqn (equation) variable, 54, 203, 205 EQU (equation variables), 43 equal (=), 290 equal to (==), 291 equation entering, 203 evaluating, 122, 130 equation coefficients storing to a variable, 210 equation editor, 74, 75, 76, 80 entering a function, 77 graph styles, 77 parametric, 126 polar, 118 Equation Editor menu, 76 Equation Operating System, 397 equation results storing to a variable, 210 equation solver, 40, 202 graph tools, 207 equation storage automatic regression, 191 equation variables, 40, 43, 78 equation-entry editor, 203 equations editing, 205 solving, 206 error conditions, 393 error menu, 31 error message, 27 error type, 27 errors, 17, 27 correcting, 27 diagnosing, 27 from attached formulas, 165 EStep, 136 Euler method, 133, 291 eval, 52, 76, 88, 101, 122, 130, 150, 291 evalF(, 54, 292 evaluating a function for x, 101 evaluating equations, 122, 130 ex (constant e raised to a power), 48 exact differentiation, 36 EXIT (cancel data transmission), 241 exiting a menu, 6, 33 exp variable, 54, 203 EXPLR (explore), 148 exponent (å), 292 ExpR (exponential regression), 190, 293 expression, 18, 20, 24, 25, 26, 30, 48 editing, 4 entering, 24 Index 409 expression (continued) entering a list, 153 evaluating, 29, 30 using a complex number, 71 using a vector, 172 using matrix, 181 F factorial (!), 50, 294 Fahrenheit converting to Celsius, 8 family of curves graphing, 86 in parametric graphs, 129 in polar graphs, 120 fcstx (forecast x), 294 fcsty (forecast y), 294 feature symbol, 39 field formats, 134 Fill, 184 Fill(, 160, 173, 295 Fix, 295 FldOff (slope and direction fields off), 134, 295 fldPic (field) variable, 138 Float, 35, 295