fx-100W fx-115W fx-570W fx-991W User's Guide Guía del usuario Mode d'emploi Bedienungsanleitung Guida dell'utilizzatore ESFGI ENGLISH Removing and Replacing the Calculator's Cover · To Remove the cover Grasp the top of the cover, and slide the unit out from the bottom. · To Replace the cover Grasp the top of the cover, and slide the unit in from the bottom. Always slide the unit into the cover with the unit's display end first. Never slide the keyboard end of the unit into the cover. Safety Precautions Be sure to read the following safety precautions before using this calculator. Keep this manual handy for later reference. Caution This symbol is used to indicate information that can result in personal injury or material damage if ignored. Batteries · After removing the batteries from the calculator, put them in a safe place where there is no danger of them getting into the hands of small children and accidently swallowed. · Keep batteries out of the reach of small children. If accidently swallowed, consult with a physician immediately. · Never charge batteries, try to take batteries apart, or allow batteries to become shorted. Never expose batteries to direct heat or dispose of them by incineration. · Misuse of batteries can cause them to leak acid that can cause damage to nearby items and creates the possibility of fire and personal injury. · Always make sure that a battery's positive k and negative l sides are facing correctly when you load it into the calculator. · Remove the batteries if you do not plan to use the calculator for a long time. · Use only the type of batteries specified for this calculator in this manual. Disposing of the Calculator · Never dispose of the calculator by burning it. Doing so can cause certain components to suddenly burst, creating the danger of fire and personal injury. E-1 · The displays and illustrations (such as key markings) shown in this User's Guide are for illustrative purposes only, and may differ somewhat from the actual items they represent. · The contents of this manual are subject to change without notice. · In no event shall CASIO Computer Co., Ltd. be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the purchase or use of these materials. Moreover, CASIO Computer Co., Ltd. shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party. Handling Precautions · Be sure to press the P button on the back of the cal· · culator (step 6 on page 35 or 36) before using it for the first time ( fx-570W/ fx-100W ). Be sure to press the 5 key before using the calculator for the first time ( fx-991W/ fx-115W ). Even if the calculator is operating normally, replace the battery at least once every three years for the fx-570W/ fx-991W/ fx-115W, or at least once every two years for the fx-100W. Dead battery can leak, causing damage to and malfunction of the calculator. Never leave the dead battery in the calculator. The battery that comes with the calculator when you purchase it is for testing only. It may not provide full service life. Low battery power can cause memory contents to become corrupted or lost completely. Always keep written records of all important data. · · E-2 · Avoid use and storage in areas subjected to temperature extremes. Very low temperatures can cause slow display response, total failure of the display, and shortening of battery life. Also avoid leaving the calculator in direct sunlight, near a window, near a heater or anywhere else it might become exposed to very high temperatures. Heat can cause discoloration or deformation of the calculator's case, and damage to internal circuitry. Avoid use and storage in areas subjected to large amounts of humidity and dust. Take care never to leave the calculator where it might be splashed by water or exposed to large amounts of humidity or dust. Such elements can damage internal circuitry. Never drop the calculator or otherwise subject it to strong impact. Never twist or bend the calculator. Avoid carrying the calculator in the pocket of your trousers or other tight-fitting clothing where it might be subjected to twisting or bending. Never try to take the calculator apart. Never press the keys of the calculator with a ball-point pen or other pointed object. Use a soft, dry cloth to clean the exterior of the unit. If the calculator becomes very dirty, wipe it off with a cloth moistened in a weak solution of water and a mild neutral household detergent. Wring out all excess moisture before wiping the calculator. Never use thinner, benzine or other volatile agents to clean the calculator. Doing so can remove printed markings and damage the case. · · · · · · E-3 Contents Safety Precautions .......................................... 1 Handling Precautions ....................................... 2 Two-line Display ............................................... 5 Key Layout ........................................................ 6 Before Starting Calculations... ....................... 8 kModes .................................................................... 8 kInput Capacity ........................................................ 9 kMaking Corrections During Input ........................... 9 kReplay Function ..................................................... 9 kError Locator ........................................................ 10 kExponential Display Formats ............................... 10 kAnswer Memory ................................................... 10 Basic Calculations ......................................... 11 Memory Calculations ..................................... 11 kIndependent Memory ........................................... 11 kVariables .............................................................. 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 ............ 14 kAngle Unit Conversion ......................................... 15 kCommon and Natural Logarithms/ Antilogarithms ...................................................... 15 kSquare Roots, Cube Roots, Roots, Squares, Cubes, Reciprocals, Factorials, Random Numbers and .......................................... 15 kFIX, SCI, RND ..................................................... 16 kENG Calculations ................................................ 17 kInputting ENG Calculation Symbols ..................... 17 kCoordinate Conversion (Pol(x, y), Rec (r, )) ............ 18 kPermutation .......................................................... 19 kCombination ......................................................... 19 E-4 Statistical Calculations .................................. 19 kStandard Deviation (SD Mode) ............................ 19 kProbability Distribution Calculations ................... 20 kRegression Calculations (REG Mode) ................. 21 Complex Number Calculations (CMPLX Mode) ............................................... 23 kAbsolute Value/Argument Calculation .................. 24 Formula Memory ............................................ 24 Metric Conversions (fx-570W/ fx-991W ) ....... 25 Scientific Constants (fx-570W/ fx-991W ) ...... 26 Base-n Calculations ...................................... 28 Integration Calculations ................................. 30 Degrees, Minutes, Seconds Calculations .... 30 Technical Information..................................... 31 kWhen you have a problem...... ............................. 31 kError Messages ................................................... 31 kOrder of Operations ............................................. 32 kStacks .................................................................. 33 kPower Supply ....................................................... 34 kInput Ranges ....................................................... 37 Specifications ................................................ 39 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 Key Layout < fx-570W > Page SHIFT 12 ALPHA REPLAY 9 MODE OFF Page 25 30 12 12 30 11 B 16 29 x! LOGIC 25 CONV 15 16 15 29 10 BIN 16 15 15 29 e OCT Page 25 Page 18 24 Page Page Page Page 17 11 A 16 DEC 27 29 HEX 15 11 C 16 11 sin-1 D 15 14 11 cos-1 E 15 14 11 tan-1 F DISTR 11 20 Re<->lm 30 24 14 21 24 r arg 14 24 11 Abs X 14 20 11 Y 11 11 MM DT CL Page Page 11 21 17 A M 11 11 11 21 17 21 17 B G 20 9 INS 11 11 19 McI ScI 20 C T Page Page 21 17 y µ 21 17 m 21 17 k 9 19 nPr 19 nCr Page 19 17 f 19 17 p 19 17 n 21 18 Pol( 21 18 y Rec( Page 16 Rnd 16 Ran# 16 15 DRG 13 Page CONV 11 fx-100W: 15 E-6 10 Key Layout < fx-991W > Page SHIFT 12 ALPHA REPLAY 9 2 MODE ON Page 25 30 12 12 30 11 B 16 29 x! LOGIC 25 CONV 15 16 15 29 10 BIN 16 15 15 29 e OCT Page 25 Page 18 24 Page Page Page Page 17 11 A 16 DEC 27 29 HEX 15 11 C 16 11 sin-1 D 15 14 11 cos-1 E 15 14 11 tan-1 F DISTR 11 20 Re<->lm 30 24 14 21 24 r arg 14 24 11 Abs X 14 20 11 Y 11 11 MM DT CL Page Page 11 21 17 A M 11 11 11 21 17 21 17 B G 20 9 INS 11 11 19 McI ScI 20 C T Page Page 21 17 y µ 21 17 m 21 17 k 9 19 nPr 19 nCr Page 19 17 f 19 17 p 19 17 n 21 18 Pol( 21 18 y Rec( Page 16 Rnd 16 Ran# 16 15 DRG 13 Page CONV 11 fx-115W: 15 E-7 10 Before Starting Calculations... k Modes Application Calculation Modes Normal calculations Complex number calculations Standard deviation calculations Regression calculations Base-n calculations COMP CMPLX SD ­ CMPLX SD Mode Name Mode Indicator REG REG BASE-N b (binary) o (octal) d (decimal) H (hexadecimal) DEG RAD GRA Angle Unit Modes Degrees Radians Grads Display Modes Exponential notation (Canceling FIX and SCI specification) Number of decimal place specification Number of significant digit specification Exponential display range specifications R T B ­ ­ Fix Sci ENG NORM1 NORM2 FIX SCI ENG Note! · Mode indicators appear in the lower part of the display, except for the Base-n indicators which appear in the exponent part of the display. · The ENG mode cannot be selected while the calculator is in the CMPLX or BASE-N mode. E-8 · You cannot set the angle unit or the display mode while the calculator is in the BASE-N mode. · The COMP, CMPLX, 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, CMPLX) and angle unit mode (DEG, RAD, GRA) before beginning a calculation. k Input Capacity · The memory 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 insert cursor is on the display inserts the input at the insert cursor position. · Press e, r, A K, or = returns to the normal cursor from the insert cursor. k Replay Function · Pressing r or e recalls the last calculation you performed. You can then make any changes you want in the calculation and re-execute it. · Pressing t does not clear Replay memory, so you can recall the last calculation even after you press t. · Replay memory is cleared whenever you start a new calculation, change to another mode, or turn off power. E-9 k Error Locator · Pressing r or e after an error occurs displays the calculation with the cursor positioned at the location where the error occurred. k Exponential Display Formats This calculator can display up to 10 digits. Larger values are automatically displayed using exponential notation. In the case of decimal values, you can select between two formats that determine at what point exponential notation is used. Press F F F F 3 1 (or 2) to select NORM 1 or NORM 2. · NORM 1 With NORM 1, exponential notation is automatically used for integer values with more than 10 digits and decimal values with more than two decimal places. · NORM 2 With NORM 2, exponential notation is automatically used for integer values with more than 10 digits and decimal values with more than nine decimal places. · All of the ...