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fx-3650P
fx-3950P
User's Guide
Guía del usuario
E S http://world.casio.com/edu_e/
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CASIO ELECTRONICS CO., LTD. Unit 6, 1000 North Circular Road, London NW2 7JD, U.K.
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ENGLISH E-1
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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 swallow
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•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, replac
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•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 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 househ
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Contents Safety Precautions ....................................................... 2 Handling Precautions .................................................. 3 Before getting started... ............................................... 7 k Key Markings ....................................................................................... 7 k Modes .................................................................................................. 8 k Input Capacity .................................
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k Square Roots, Cube Roots, Roots, Squares, Cubes, Reciprocals, Factorials, Random Numbers, π, and Permutation/Combination ....... 23 k Angle Unit Conversion ....................................................................... 24 k Coordinate Conversion (Pol (x, y), Rec (r, θ )) .................................. 24 k Engineering Notation Calculations ..................................................... 25 Statistical Calculations .............................................. 25 Standard De
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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 Color Key Operation 1 M+ | 2 M– Orange A | Press A and then the key to perform the marked function. 3 MRed p | Press p and then the key to perform the marked function. 4 DT Blue In the SD and REG Modes: | 5 CL Orange In the SD and REG Modes: A | In blue Pre
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kModes Before starting a calculation, you must first enter the correct mode as indicated in the table below. To perform this type of Perform this To enter operation: key operation: this mode: Basic arithmetic calculations F 1 COMP Complex number calculations F 2 CMPLX Standard deviation F F 1 SD Regression calculations F F 2 REG Base-n calculations F F 3 BASE Program editing F F F 1 PRGM Program execution F F F 2 RUN Program deletion F F F 3 PCL • Pressing the F key more than three times display
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•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 ari
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•Pressing the e or r key while a replay memory calculation is on the display changes to the editing screen. •Pressing the e or r key immediately after you finish a calculation displays the editing screen for that calculation. •Pressing t does not clear replay memory, so you can recall the last calculation even after you press t. •Replay memory capacity is 128 bytes for storage of both expressions and results. •Replay memory is cleared by any of the following actions. When you press the 5 key Whe
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u 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. u 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 examples in this manual show calculation results using the Norm 1 format. kInitializing the Calculator (Reset Operation) •Performing the key operation below init
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kFraction Operations u Fraction Calculations •Values are displayed in decimal format automatically whenever the total number of digits of a fractional value (integer + numerator + denominator + separator marks) exceeds 10. 2 1 13 00 • Example 1: 2 C 3 + 1 C 5 < 13 15. 3 5 15 1 2 11 • Example 2: 3 1 4 3 C 1 C 4 + 4 3 12 00 1 C 2 C 3 < 4 11 12. 2 1 • Example 3: 2 C 4 < 4 2 1 • Example 4: 1.6 2.1 1 C 2 + 1.6 < 2 •Results of calculations that mix fraction
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u Mixed Fraction ↔ Improper Fraction Conversion 2 5 00 • Example: 1 ↔ 1 C 2 C 3 < 1 2 3. 3 3 00 A B 5 3. 00 A B 1 2 3. •You can use the display setup (Disp) screen to specify the display format when a fraction calculation result is greater than one. •To change the fraction display format, press the q key a number of times until you reach the setup screen shown below. Disp 1 •Display the selection screen. 1 (or 1 r in the CMPLX Mode) •Press the number key ( 1 or 2) that corresponds to the
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*As shown here, if you want to use the current Answer Memory value in a mark up or discount calculation, you need to assign the Answer Memory value into a variable and then use the variable in the mark up/ discount calculation. This is because the calculation performed when v is pressed stores a result to Answer Memory before the , key is pressed. • Example 6: If 300 grams are added to a test sample originally weighing 500 grams, what is the percentage increase in weight? (160%) 300 + 500 A v •
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•Press the number key ( 1, 2, or 3) that corresponds to the setup item you want to change. 1 (Fix): Number of decimal places 2 (Sci): Number of significant digits 3 (Norm): Exponential display format 00 • Example 1: 200 7 14 200 \ 7 - 14 < 400. FIX ..... (Fix) (Specifies three decimal places.) F 1 3 00 400.000 00 (Internal calculation continues using 12 digits.) 200 \ 7 < 28.571 00 - 14 < 400.000 The following performs the same calculation using the specified number of decimal places. 00 2
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kAnswer Memory •Whenever you press < after inputting values or an expression, the calculated result automatically updates Answer Memory contents by storing the result. •In addition to <, Answer Memory contents are also updated with result whenever you press A v, |, A {, or A j followed by a letter (A through D, or M, X, or Y). •You can recall Answer Memory contents by pressing g. •Answer Memory can store up to 12 digits for the mantissa and two digits for the exponent. •Answer Memory contents ar
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kVariables •There are seven variables (A through D, M, X and Y), which can be used to store data, constants, results, and other values. •Use the following operation to delete data assigned to a particular variable: 0 A j 1. This operation deletes the data assigned to variable A. •Perform the following key operation when you want to clear the values assigned to all of the variables. A B 1(Mcl) < • Example: 193.2 23 8.4 193.2 A j 1 \ 23 < 193.2 28 6.9 p 1 \ 28 < CMPLX Complex Number Calcul
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kAbsolute Value and Argument Calculation Supposing the imaginary number expressed by the rectangular form z = a + bi is represented as a point in the Gaussian plane, you can determine the absolute value (r) and argument () of the complex number. The polar form is r. • Example 1: To determine the absolute value (r) and argument () of 3 + 4i (Angle unit: Deg) (r = 5, = 53.13010235°) Imaginary axis Real axis (r 5) A A R 3 + 4 i T < ( 53.13010235°) A a R 3 + 4 i T < •The complex number
