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11 Fraction Calculations ..................................... 12 kFraction Calculations ........................................... 12 kDecimal-to-Fraction Conversion ........................... 12 kFraction-to-Decimal Conversion ........................... 12 Percentage Calculations ................................ 13 Scientific Function Calculations ................... 14 kTrigonometric/Inverse Trigonometric Functions .... 14 kHyperbolic/Inverse Hyperbolic Functions ............. 15 kAngle Unit Conversion ......................................... 15 kCommon and Natural Logarithms/ Antilogarithms ...................................................... 15 kSquare Roots, Cube Roots, Roots, Squares, Cubes, Reciprocals, Factorials, Random Numbers and . .......................................... 16 kFIX, SCI, RND ..................................................... 16 kENG Calculations ................................................ 17 kCoordinate Conversion (Pol(x, y), Rec (r, .)) ............ 18 E-4 kPermutation .......................................................... 18 kCombination ......................................................... 18 Statistical Calculations .................................. 19 kStandard Deviation (SD Mode) ............................ 19 kRegression Calculations (REG Mode) ................. 20 Formula Memory (fx-85W ) ............................. 23 Base-n Calculations (fx-85W ) ....................... 23 Degrees, Minutes, Seconds Calculations .... 25 Technical Information ..................................... 25 kWhen you have a problem...... ............................. 25 kError Messages ................................................... 26 kOrder of Operations ............................................. 27 kStacks .................................................................. 27 kPower Supply ....................................................... 28 kInput Ranges ....................................................... 30 Specifications ................................................ 32 Two-line Display You can simultaneously check the calculation formula and its answer. The first line displays the calculation formula. The second line displays the answer. E-5 Key Layout Page 12 9 REPLAY SHIFT ALPHA MODE OFF Page 16 18 18 16 Rec ( x! Page 16 18 18 16 16 15 Page 12 15 15 10 e Page 17 12 16 16 15 15 Page 11 25 1111 11 14 11 14 11 A B C sin-1 D cos-1 E tan-1 F Page 11 25 15 14 14 Page 20 11 20 11 11 11 Page 11 11 11 11 11 DT CL M-MX Yr 2019 Page 20 20 20 9 11 19 A B INS ScIMcIC Page 9 Page 20 20 20 Page y y 19 1919 20 20 Page 17 16 16 15 13 Rnd Ran# DRG Page 11 10 fx-85WA/fx-300W: 2 ScIMcIScIMcIOFF ON E-6 < fx-85W > Page 12 9 2 REPLAY SHIFT ALPHA MODE ON Page 23 16 24 18 16 x! LOGIC Rec ( Page 23 16 18 16 16 15 Page 12 24 15 24 15 24 DEC HEX 10 BIN e OCT Page 17 12 16 16 15 15 Page A 11 B 25 11C 11 sin-1 D 11 cos-1 E 14 11 tan-1 F 14 11 Page Page 11 25 15 20 14 11 1420 11 11 11 Page Page 11 20 11 20 11 20 11 9 11 11 19 DT CL M-MX Yr 2019 A B INS ScIMcI Page 9 C Page 20 20 20 18 18 Page nPr nCr y y 19 1919 20 20 Page 17 16 16 15 13 Rnd Ran # DRG Page 11 10 E-7 Before Starting Calculations... k Modes Application Mode Name Mode Indicator Calculation Modes Normal calculations COMP – Standard deviation calculations SD SD Regression calculations REG REG Base-n calculations (fx-85W only) BASE-N b (binary) o (octal) d (decimal) H (hexadecimal) Angle Unit Modes Degrees DEG R Radians RAD T Grads GRA B Display Modes Exponential notation (Canceling FIX and SCI specification) NORM1 NORM2 – – Number of decimal place specification FIX Fix Number of significant digit specification SCI Sci Note! •Mode indicators appear in the lower par t of the display, except for the Base-n indicators which appear in the exponent par t of the display. •You cannot set the angle unit or the display mode while the calculator is in the BASE-N mode (fx-85W). • The COMP, SD, and REG modes can be used in combination with the angle unit modes. • Be sure to check the current calculation mode (SD, REG, COMP) and angle unit mode (DEG, RAD, GRA) before beginning a calculation. E-8 k Input Capacity • The memor y area used for calculation input can hold 79 “steps.” Whenever you input the 73rd step of any calculation, the cursor changes from “_” to “k” to let you know memory is running low. If you still need to input more, you should divide your calculation into two or more parts. k Making Corrections During Input •Use e and r to move the cursor to the location you want. •Press [ to delete the number or function at the current cursor position. •Press A K to change to an insert cursor t. Inputting something while the inser t cursor is on the display inserts the input at the inser t cursor position. •Press e, r, A K, or = returns to the normal cursor from the inser t cursor. k Replay Function •Pressing r or e recalls the last calculation you performed. You can then make any changes you want in the calcula...

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