fx-3650P fx-3950P User's Guide Guía del usuario ES http://world.casio.com/edu_e/ CASIO ELECTRONICS CO., LTD. Unit 6, 1000 North Circular Road, London NW2 7JD, U.K. ENGLISH E-1 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 battery from the calculator, put it in a safe place where it will not get into the hands of small children and accidentally swallowed. · Keep batteries out of the reach of small children. If accidentally 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 and damage nearby items, and can create the risk of fire and personal injury. · Always make sure that the battery's positive k and negative l ends are facing correctly when you load it into the calculator. · Remove the battery if you do not plan to use the calculator for a long time (fx-3950P). · Use only the type of battery 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 risk of fire and personal injury. · 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. E-2 · 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 5 key before using the calculator for the first time. · Even if the calculator is operating normally, replace the battery at least once every three years. A dead battery can leak, causing damage to and malfunction of the calculator. Never leave a dead battery in the calculator. · The battery that comes with this unit discharges slightly during shipment and storage. Because of this, it may require replacement sooner than the normal expected battery life. · Low battery power can cause memory contents to become corrupted or lost completely. Always keep written records of all important data. · 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 be 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 conditions can damage internal circuitry. · Never drop the calculator or otherwise subject it to strong impact. E-3 · Never twist or bend the calculator. Avoid carrying the calculator in the pocket of your trousers or other tightfitting 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 ballpoint pen or other pointed object. · Use a soft, dry cloth to clean the exterior of the calculator. 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, benzene or other volatile agents to clean the calculator. Doing so can remove printed markings and can damage the case. E-4 Contents Safety Precautions ....................................................... 2 Handling Precautions .................................................. 3 Before getting started... ............................................... 7 k Key Markings ....................................................................................... 7 k Modes .................................................................................................. 8 k Input Capacity ...................................................................................... 9 k Making Corrections During Input ......................................................... 9 k Replay Function ................................................................................... 9 k Error Locator ...................................................................................... 10 k Exponential Display Formats ............................................................. 10 k Initializing the Calculator (Reset Operation) ...................................... 11 Basic Calculations ..................................................... 11 k Arithmetic Calculations ...................................................................... 11 k Fraction Operations ........................................................................... 12 k Percentage Calculations .................................................................... 13 k Degrees, Minutes, Seconds Calculations .......................................... 14 k FIX, SCI, RND ................................................................................... 14 Memory Calculations ................................................. 15 k Answer Memory ................................................................................. 16 k Consecutive Calculations .................................................................. 16 k Independent Memory ......................................................................... 16 k Variables ............................................................................................ 17 Complex Number Calculations ................................. 17 k Absolute Value and Argument Calculation ......................................... 18 k Rectangular Form Polar Form Display .......................................... 18 k Conjugate of a Complex Number ...................................................... 19 Base-n Calculations ................................................... 19 Scientific Function Calculations ............................... 21 k Trigonometric/Inverse Trigonometric Functions ................................. 21 k Hyperbolic/Inverse Hyperbolic Functions .......................................... 22 k Common and Natural Logarithms/Antilogarithms .............................. 22 E-5 k Square Roots, Cube Roots, Roots, Squares, Cubes, Reciprocals, Factorials, Random Numbers, , and Permutation/Combination ....... 23 k Angle Unit Conversion ....................................................................... 24 k Coordinate Conversion (Pol (x, y), Rec (r, )) .................................. 24 k Engineering Notation Calculations ..................................................... 25 Statistical Calculations .............................................. 25 Standard Deviation ................................................................................ 25 Regression Calculations ........................................................................ 28 Differential Calculations ............................................ 34 Integration Calculations ............................................ 34 Programming a Calculation ...................................... 35 Storing a Program .................................................................................. 36 k Editing a Program .............................................................................. 38 Executing a Program ............................................................................. 38 Deleting a Program ................................................................................ 40 Useful Program Commands ................................................................... 40 k Program Command Menus ................................................................ 40 k Unconditional Jump ........................................................................... 41 k Conditional Jump Using a Relational Operator .................................. 42 k Other Program Statements ................................................................ 42 Statistical Data Memory and Program Memory ....... 44 k Statistical Data ................................................................................... 44 k Programs ........................................................................................... 45 Technical Information ................................................ 46 k When you have a problem...... ........................................................... 46 k Error Messages ................................................................................. 46 k Order of Operations ........................................................................... 47 k Stacks ................................................................................................ 49 k Input Ranges ..................................................................................... 50 Power Supply .............................................................. 52 Specifications ............................................................. 54 Practical Examples .................................................. A-1 k Program Library ............................................................................... A-1 E-6 Before getting started... kKey Markings Many of the calculator's keys are used to perform more than one function. The functions marked on the keyboard are color coded to help you find the one you need quickly and easily. M­ M A DT CL Function 1 2 M+ M­ Color Orange Key Operation | A| Press A and then the key to perform the marked function. 3 M Red p| Press p and then the key to perform the marked function. In the SD and REG Modes: 4 5 DT CL Blue Orange In blue brackets Orange In purple brackets Red In green brackets | In the SD and REG Modes: A| Press A and then the key to perform the marked function. In the CMPLX Mode: 6 AD Press A and then the key to perform the marked function. 7 A pD Press p and then the key to specify variable A. D In the BASE Mode, press the key without pressing p. E-7 kModes Before starting a calculation, you must first enter the correct mode as indicated in the table below. To perform this type of operation: Basic arithmetic calculations Complex number calculations Standard deviation Regression calculations Base-n calculations Program editing Program execution Program deletion Perform this key operation: To enter this mode: COMP CMPLX SD REG BASE PRGM RUN PCL F1 F2 FF1 FF2 FF3 FFF1 FFF2 FFF3 · Pressing the F key more than three times displays additional setup screens. Setup screens are described where they are actually used to change the calculator setup. · In this manual, the name of the mode you need to enter in order to perform the calculations being described is indicated in the main title of each section. Example: CMPLX Complex Number Calculations Note! · To return the calculation mode and setup to the initial defaults shown below, press A B 2(Mode) <. Calculation Mode: Angle Unit: Exponential Display Format: Complex Number Display Format: Fraction Display Format: COMP Deg Norm 1 a+b i a b/c · Mode indicators appear in the upper part of the display, except for the BASE indicators, which appear in the exponent part of the display. E-8 · You cannot make changes to the angle unit or other display format (Disp) settings while the calculator is in the BASE Mode. · The COMP, CMPLX, SD, and REG modes can be used in combination with the angle unit settings. · Be sure to check the current calculation mode (SD, REG, COMP, CMPLX) and angle unit setting (Deg, Rad, Gra) before beginning a calculation. kInput Capacity · The memory area used for calculation input can hold 79 "steps." One step is taken up each time you press a number key or arithmetic operator key ( +, ,, -, \ ). A A or p key operation does not take up a step, so inputting A D, for example, takes up only one step. · You can input up to 79 steps for a single calculation. 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 need to input more than 79 steps, you should divide your calculatio ...