Casio FX-85SA Guía de usuario

Ehttp://world.casio.com/edu/fx-82MSfx-83MSfx-85MSfx-270MSfx-300MSfx-350MSUser's Guide

E-8Note!•To return the calculation mode and setup to the initialdefaults shown below, press A B 2(Mode) =.Calculation Mode: COMPAngle Unit: DegExponen

E-9k Replay Function• Every time you perform a calculation, the replay functionstores the calculation formula and its result in replaymemory. Pressing

E-10k Exponential Display FormatsThis calculator can display up to 10 digits. Larger valuesare automatically displayed using exponential notation. Int

E-11COMP•Press the number key ( 1 or 2) that corresponds tothe setting you want to use.1(Dot): Period decimal point, comma separator2(Comma): Comma de

E-12• Results of calculations that mix fraction and decimal val-ues are always decimal.uDecimal ↔ Fraction Conversion•Use the operation shown below to

E-13uMixed Fraction ↔ Improper FractionConversion• Example: 1 ↔1 C 2 C 3 =A BA B5 3.001 2 3.0053231 2 3.00•You can use the display setup (D

E-14• Example 5: To discount the sum of 168, 98, and 734 by20%(800)168 + 98 + 734 = g A j 1p 1 - 20 A v ,*As shown here, if you want to use the curren

E-15k FIX, SCI, RND•To change the settings for the number of decimal places,the number of significant digits, or the exponential dis-play format, pres

E-16COMPMemory CalculationsUse the F key to enter the COMP Mode when youwant to perform a calculation using memory.COMP ...

E-17COMP• Example:23  9 3223 + 9 A j 3 (M+)53  6 4753 , 6 |) 45  2 9045 - 2 A {(Total)–110 3 (M+)k Variables• There are nine variables (A throu

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E-18k Trigonometric/Inverse TrigonometricFunctions•To change the default angle unit (degrees, radians,grads), press the F key a number of times until

E-19k Common and Natural Logarithms/Antilogarithms• Example 1: log 1.23  0.089905111R 1.23 =• Example 2: In 90 (= loge 90) = 4.49980967T 90 =ln e  1

E-20• Example 9: 3π  9.4247779613 A x =• Example 10: To determine how many different 4-digitvalues can be produced using the numbers 1 through 7• N

E-21SDREGSD• Example 2: To convert rectangular coordinates (1, 3)to polar coordinates (r,) (Rad)r  2f 1 P L 3 T =θ  1.0471975510 o•Press 0 n to di

E-22Data Input Precautions• S S inputs the same data twice.•You can also input multiple entries of the same datausing A G. To input the data 110 ten t

E-23•You can then edit the displayed data, if you want. Inputthe new value and then press the = key to replace theold value with the new one. This als

E-24Regression CalculationsUse the F key to enter the REG Mode when you wantto perform statistical calculations using regression.REG ...

E-25• The following table shows the key operations you shoulduse to recall results in the case of quadratic regression.To recall this type of value: P

E-26• Example: Atmospheric Pressure vs. TemperaturePerform linear regression to de-termine the regression formulaterms and correlation coefficientfor

E-27uLogarithmic, Exponential, Power, and InverseRegression•Use the same key operations as linear regression to re-call results for these types of reg

E-1Removing and Replacingthe Calculator’s Cover• Before starting ...1Holding the cover as shown in the illustration, slide theunit out of the cover.

E-28Data Input Precautions• S S inputs the same data twice.•You can also input multiple entries of the same datausing A G. To input the data “20 and 3

E-29Math ERROR•Causes• Calculation result is outside the allowable calculationrange.• An attempt to perform a function calculation using avalue that e

E-30k Order of OperationsCalculations are performed in the following order of prec-edence.1 Coordinate transformation: Pol (x, y), Rec (r, θ )2 Type A

E-31• Example:123451 2 3 4 5 67Numeric Stack Command Stack12345234541234567k StacksThis calculator uses memory areas, called “stacks,” to tem-pora

E-32k Input RangesInternal digits: 12Accuracy*: As a rule, accuracy is ±1 at the 10th digit.Functions Input Rangesinx DEG 0 x 4.4999999991010RAD

E-33Functions Input RangenCr0 n  11010, 0 r  n (n, r are integers)1 [n!/{r!(n–r)!}]  110100Pol(x, y)x, y 9.9999999991049(x2+y2) 9.99999

E-34Power SupplyThe type of battery you should use depends on the modelnumber of your calculator.fx-85MS/fx-300MSThe TWO WAY POWER system actually has

E-35fx-83MS/fx-270MS/fx-350MSThis calculator is powered by single G13 Type (LR44)button battery.•Replacing the BatteryDim figures on the display of th

E-36fx-82MSThis calculator is powered by a single AA-size battery.•Replacing the BatteryDim figures on the display of the calculator indicate thatbatt

E-37SpecificationsPower Supply:fx-82MS: Single AA-size battery (R6P (SUM-3))fx-83MS/fx-270MS/fx-350MS:Single G13 Type button battery (LR44)fx-85MS/fx-

E-2Safety PrecautionsBe sure to read the following safety precautions beforeusing this calculator. Keep this manual handy for later ref-erence.Caution

SA0311-C Printed in ChinaCA 310120-001V03CASIO COMPUTER CO., LTD.6-2, Hon-machi 1-chomeShibuya-ku, Tokyo 151-8543, Japan

E-3• The contents of this manual are subject to change with-out notice.•In no event shall CASIO Computer Co., Ltd. be liable toanyone for special, col

E-4• Never drop the calculator or otherwise subject it tostrong impact.• Never twist or bend the calculator.Avoid carrying the calculator in the pocke

E-5ContentsRemoving and Replacing theCalculator’s Cover ... 1Safety Precautions ... 2Han

E-6kCommon and Natural Logarithms/Antilogarithms ..... 19kSquare Roots, Cube Roots, Roots, Squares,Cu

E-7To perform this type of Perform this To entercalculation: key operation: this mode:Basic arithmetic calculations F 1 COMPStandard deviation F 2 SDR