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Related Manuals for Casio fx-115WA
Summary of Contents for Casio fx-115WA
- Page 1 User’s Guide...
- Page 2 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. CASIO ELECTRONICS CO., LTD. Unit 6, 1000 North Circular Road, London NW2 7JD, U.K.
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Page 3: Safety Precautions
Safety Precautions Be sure to read the following safety precautions before using this calculator. Keep this manual handy for later ref- erence. Caution This symbol is used to indicate information that can result in personal injury or material damage if ignored. -
Page 4: Handling Precautions
The contents of this manual are subject to change without notice. • In no event shall CASIO Computer Co., Ltd. be li- able to anyone for special, collateral, incidental, or consequential damages in connection with or aris- ing out of the purchase or use of these materials. - Page 5 • 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 mois- ture before wiping the calculator.
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Page 6: Table Of Contents
Contents Safety Precautions ... 1 Handling Precautions ... 2 Two-line Display ... 5 Key Layout ... 6 Before Starting Calculations..7 kModes ... 7 kInput Capacity ... 8 kMaking Corrections During Input ... 8 kReplay Function ... 8 kError Locator ... 9 kExponential Display Formats ... -
Page 7: Two-Line Display
Statistical Calculations ... 18 kStandard Deviation (SD Mode) ... 18 kProbability Distribution Calculations ... 19 kRegression Calculations (REG Mode) ... 20 Complex Number Calculations (CMPLX Mode) ... 22 kAbsolute Value/Argument Calculation ... 23 Metric Conversions ( fx-991WA ) ... 23 Scientific Constants ( fx-991WA ) ... -
Page 8: Key Layout
Page DISTR Page Page 20 16 Page Page 20 16 µ Page 18 16 Page Page fx-115WA: REPLAY CONV 20 23 23 10 < - > 20 16 20 16 20 16 20 16 18 16 18 16 Ran# CONV... -
Page 9: Before Starting Calculations
Note! • Mode indicators appear in the lower part of the display, except for the Base- ponent part of the display. • The ENG mode cannot be selected while the calculator is in the CMPLX or BASE-N mode. Mode Name... -
Page 10: Kinput Capacity
• 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. -
Page 11: Kerror Locator
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. -
Page 12: Basic Calculations
Basic Calculations • Use the COMP mode for basic calculations. • Example 1 : 3 (5 10 • Example 2 : 5 (9 7) • You can skip all Memory Calculations k Independent Memory • Values can be input directly into memory, added to memor y, or subtracted from memory. -
Page 13: Fraction Calculations
• Example: 193.2 Ö 23 193.2 Ö 28 193.2 Fraction Calculations k Fraction Calculations • Use the COMP mode for fraction calculations. • Values are automatically displayed in decimal format whenever the total number of digits of a fractional value (integer numerator exceeds 10. -
Page 14: Percentage Calculations
Percentage Calculations • Use the COMP mode for percentage calculations. • Example 1 : To calculate 12% of 1500 • Example 2 : To calculate what percentage of 880 is 660 • Example 3 : To add 15% onto 2500 2500 •... -
Page 15: Scientific Function Calculations
Scientific Function Calculations • Use the COMP mode for scientific function calculations. • = 3.14159265359 k Trigonometric/Inverse Trigonometric Functions • Example 1 : sin63°52o41 q q q 1 • Example 2 : cos q q q 2 W R A x \ •... -
Page 16: Kangle Unit Conversion
k Angle Unit Conversion • Press • Pressing the corresponding angle unit. • Example : To convert 4.25 radians to degrees F F F 1 4.25 k Common and Natural Logarithms/ Antilogarithms • Example 1 : log 1.23 • Example 2 : In 90 ( log •... -
Page 17: Kfix, Sci, Rnd
• Example 3: • Example 4: 123 30 • Example 5: 12 • Example 6: • Example 7: 8! • Example 8: To generate a random number between 0.000 and 0.999 • Example 9: 3π k FIX, SCI, RND • Example 1: 200Ö7 14 400 (Specifies three decimal places.) (Calculation continues using 10... -
Page 18: Keng Calculations
F F F F 3 1 • Press • Example 2: 1Ö 3, displaying result with two significant digits (SCI 2) F F F F 2 2 F F F F 3 1 • Press k ENG Calculations • Example 1: To convert 56,088 meters to kilometers •... -
Page 19: Kcoordinate Conversion (Pol(X, Y), Rec (R, Θ ))
* For displayed values, the calculator selects the ENG sym- bol that makes the numeric part of the value fall within the range of 1 to 1000. * ENG symbols cannot be used when inputting fractions. * The ENG mode cannot be used in combination with the CMPLX, or BASE-N modes. -
Page 20: Kpermutation
(1234 is allowed, but 1123 is not). k Combination • Example: To determine how many different 4-member groups can be organized in a group of 10 individuals fx-115WA ... 10 fx-991WA ... 10 Statistical Calculations k Standard Deviation (SD Mode) F F 1 •... -
Page 21: Kprobability Distribution Calculations
• Example: To calculate following data : 55, 54, 51, 55, 53, 53, 54, 52 Enter SD Mode A m = (Memory Clear) (Sample Standard Deviation (Population Standard Deviation (Arithmetic Mean (Number of Data Σx (Sum of Values (Sum of Squares of Values Data Input Precautions •... -
Page 22: Kregression Calculations (Reg Mode)
• Example : Using the on page 20, determine the normalized variate ( = 53 and normal probability distribution P( A D 1 k Regression Calculations (REG Mode) F F 2 • Press lect one of the following regression types. : Linear regression : Logarithmic regression : Exponential regression... -
Page 23: Quadratic Regression
• Example: Atmospheric Pressure vs. Temperature Atmospheric Temperature Pressure 10°C 1003 hPa 15°C 1005 hPa 20°C 1010 hPa 25°C 1011 hPa 30°C 1014 hPa Enter REG Mode (Linear Regression) q q 2 1 A m = (Memory Clear) 1003 1010 (Regression Coefficient A) (Regression Coefficient B) (Correlation Coefficient... -
Page 24: Complex Number Calculations (Cmplx Mode)
Enter REG mode (Quadratic regression) F F 2 r 3 A m = 38.0 (Regression Coefficient A) (Regression Coefficient B) (Regression Coefficient C) ˆ y when i = 16) ˆ x when i = 20) ˆ x when i = 20) Data Input Precautions •... -
Page 25: Kabsolute Value/Argument Calculation
• Example: (2 + 3 Enter CMPLX Mode k Absolute Value/Argument Calculation • The procedure described below can be used to deter- mine the absolute value (Abs) and argument (arg) for a complex number of the format Z = sumed to exist as coordinates on a Gaussian plane. •... - Page 26 • See the Conversion Pair Table shown below for a com- plete list of available conversion pairs. • Example: To convert 31 inches to centimeters • Conversion Pair Table Based on ISO Standard (1992) data and CODATA Bulletin 63 (1986) data. Number Conversion Pair in →...
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Page 27: Scientific Constants ( Fx-991Wa )
Scientific Constants • A total of 40 commonly-used scientific constants, such as the speed of light in a vacuum and Planck's constant are built-in for quick and easy lookup whenever you need them. • Simply input the number that corresponds to the scien- tific constant you want to look up and it appears instantly on the display. -
Page 28: Base- N Calculations
Number fine-structure constant classical electron radius electron Compton wavelength proton gyromagnetic ratio proton Compton wavelength neutron Compton wavelength Rydberg constant atomic mass unit proton magnetic moment electron magnetic moment neutron magnetic moment muon magnetic moment Faraday constant elementary charge Avogadro constant Boltzmann constant molar volume of ideal gas molar gas constant... - Page 29 • You cannot use scientific functions in binary, octal, deci- mal, and hexadecimal calculations. You cannot input val- ues that include decimal part and an exponent. • If you input a value that includes a decimal part, the unit automatically cuts off the decimal part. •...
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Page 30: Degrees, Minutes, Seconds Calculations
• Example 3: To perform the following calculation and produce a hexadecimal result: or 1101 Hexadecimal mode l l l 3 Degrees, Minutes, Seconds Calculations • You can perform sexagesimal calculations using degrees (hours), minutes, and seconds, and convert between sexagesimal and decimal values. -
Page 31: Kerror Messages
Make sure you always keep written copies of all important data. k Error Messages The calculator is locked up while an error message is on the display. Press to display the calculation and correct the problem. See “Error Locator” on page 9 for details. -
Page 32: Korder Of Operations
• Action • Press cursor located at the location of the error. Make nec- essary corrections. Arg ERROR • Cause • Improper use of argument • Action • Press the error and make required corrections. k Order of Operations Calculations are performed in the following order of prec- edence. -
Page 33: Kstacks
Normally, calculators equipped with a solar cell alone can operate only when relatively bright light is present. The TWO WAY POWER system, however, lets you con- tinue to use the calculator as long as there is enough light to read the display. • Replacing the Battery Either of the following symptoms indicates battery power is low, and that the battery should be replaced. - Page 34 Be sure not to skip this step. • Auto Power Off Calculator power automatically turns off if you do not per- form any operation for about six minutes. When this hap- pens, press to turn power back on.
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Page 35: Kinput Ranges
k Input Ranges Internal digits: 12 Accuracy: As a rule, accuracy is ±1 at the 10th digit. Functions DEG 0 RAD 0 GRA 0 DEG 0 RAD 0 GRA 0 DEG Same as sin RAD Same as sin GRA Same as sin –1 –1 –1... - Page 36 Functions Pol(x, y) , ) 0 Rec( θ: Same as sin °’ ” 1 10 Decimal ↔ Sexagesimal Conversions Œ0: –1 10 0: However: –1 10 Œ0: –1 10 0: However: –1 10 Total of integer, numerator, and denominator must be 10 digits or less (including division marks).
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Page 37: Specifications
Specifications Power Supply: Solar cell and a single G13 Type button battery (LR44) Battery Life: Approximately 3 years (1 hour use per day). Dimensions: 10(H)i76(W)i150(D) mm (H)i3 (W)i5 Weight: 85 g (3 oz) including battery Power Consumption: 0.0001W Operating Temperature: 0°C ~ 40°C (32°F ~ 104°F) - Page 38 CASIO COMPUTER CO., LTD. 6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan U.S. Pat. 4,410,956 SA9911-A Printed in China HA310537-1...