Casio fx-82AR X, User Manual

Page 1: ...sio com User s Guide CASIO Worldwide Education Website http world casio com manual calc Manuals are available in multi languages at Be sure to keep all user documentation handy for future reference fx 95ARX fx 82ARX ...

Page 2: ...er Table 19 Inequality Calculations fx 95AR X only 20 Ratio Calculations fx 95AR X only 20 Errors 21 Before Assuming Malfunction of the Calculator 22 Replacing the Battery 22 Technical Information 22 Frequently Asked Questions 25 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 o...

Page 3: ...tion also clears all data currently in calculator memory RESET Initialize All Yes Precautions Safety Precautions Battery Keep batteries out of the reach of small children Use only the type of battery specified for this calculator in this manual Handling Precautions Even if the calculator is operating normally replace the battery at least once every two years A dead battery can leak causing damage t...

Page 4: ...probably means that battery power is low Replace the battery Key Markings Pressing the or key followed by a second key performs the alternate function of the second key The alternate function is indicated by the text printed above the key 1 Keycap function 2 Alternate function This color Means this Yellow Press and then the key to access the applicable function Red Press and then the key to input ...

Page 5: ...ate result of a multi statement calculation Using Menus Some of the operations of this calculator are performed using menus Menus are displayed by pressing or and then SETUP General menu operation operations are described below You can select a menu item by pressing the number key that corresponds to the number to its right 1 or left 2 on the menu screen or 1 2 A vertical scroll bar 1 indicates th...

Page 6: ...s that should be applied for calculation formula input and calculation result output To specify this type of input and output Press SETUP Input Output and then press Input Natural Textbook Output Format that includes a fraction or π 1 MathI MathO Input Natural Textbook Output Converted to decimal value MathI DecimalO Input Linear 2 Output Decimal or fraction LineI LineO Input Linear 2 Output Conve...

Page 7: ...ols the number of decimal places for displayed calculation results Calculation results are rounded off to the specified digit before being displayed Example 100 7 14 286 Fix 3 Sci The value you specify from 0 to 9 controls the number of significant digits for displayed calculation results Calculation results are rounded off to the specified digit before being displayed Example 1 7 1 4286 10 1 Sci 5 N...

Page 8: ... Font Language English Arabic Specifies the language to be used for calculator menus and messages To initialize calculator settings except the Contrast setting RESET Setup Data Yes Inputting Expressions and Values Basic Input Rules When you press the priority sequence of the input calculation will be evaluated automatically and the result will appear on the display 4 sin 30 30 10 3 120 1 Input of t...

Page 9: ...theses 2 Since x2 has a higher priority than the negative sign inputting 2 would result in the squaring of 2 and then appending a negative sign to the result Always keep the priority sequence in mind and enclose negative values in parentheses when required Inputting an Expression Using Natural Textbook Format MathI MathO or MathI DecimalO Only Formulas and expressions that include fractions and or...

Page 10: ...put Mode LineI LineO or LineI DecimalO only In the overwrite mode text you input replaces the text at the current cursor location You can toggle between the insert and overwrite modes by performing the operations INS The cursor appears as in the insert mode and as in the overwrite mode Toggling Calculation Results While MathI MathO or MathI DecimalO is selected for Input Output on the setup menu e...

Page 11: ...ir lowest terms To switch a calculation result between improper fraction and mixed fraction form press Percent Calculations Inputting a value and pressing causes the input value to become a percent 150 20 30 150 20 30 Calculate what percentage of 880 is 660 75 660 880 75 Discount 3500 by 25 2625 3500 3500 25 2625 Degree Minute Second Sexagesimal Calculations The syntax below is for inputting a sex...

Page 12: ...tored will be enclosed in parentheses on the display Calculation History and Replay Calculation History An and or at the top of the display indicates that there is more calculation history content above and or below You can scroll through calculation history contents using and 2 2 4 2 2 4 3 3 6 3 3 6 Scrolls back 4 Note Calculation history data is all cleared whenever you press when you change to ...

Page 13: ...lling a variable value press Independent Memory M You can add calculation results to or subtract results from independent memory The M appears on the display when there is any value other than zero stored in independent memory To clear the contents of M 0 M 0 To add the result of 10 5 to M Continuing 10 5 50 To subtract the result of 10 5 from M Continuing 10 5 M 15 To recall the contents of M Con...

Page 14: ...ngle Unit Degree π 2 Angle Unit r 90 2 Depending on the calculation mode you should press Exponential functions e5 2 296 8263182 MathI MathO 5 2 296 8263182 LineI LineO 5 2 296 8263182 log Logarithmic function Use to input logab as log a b Base 10 is the default setting if you do not input anything for a log101000 log 1000 3 1000 3 log216 4 2 16 4 The key also can be used for input but only while ...

Page 15: ...lt differs with each execution RanInt Function that generates a pseudo random integer between a specified start value and end value To generate random integers in the range of 1 to 6 RanInt 1 6 2 The result differs with each execution nPr nCr Permutation nPr and combination nCr functions To determine the number of permutations and combinations possible when selecting four people from a group of 10 ...

Page 16: ...tion screen Inputting Data with Statistics Editor Statistics Editor displays one two or three columns single variable x single variable and frequency x Freq paired variable x y paired variable and frequency x y Freq The number of data rows that can be input depends on the number of columns 160 rows for one column 80 rows for two columns 53 rows for three columns Note Use the Freq frequency column ...

Page 17: ...m Input Data You can use the operations in this section to recall statistical values assigned to variables σx Σx2 etc based on the data you input with the Statistics Editor You can also use the variables in calculations The operations in this section are performed on the statistical calculation screen that appears when you press while the Statistics Editor is displayed Supported statistical variab...

Page 18: ...532 Calculating Estimated Values Based on the regression formula obtained by paired variable statistical calculation the estimated value of y can be calculated for a given x value The corresponding x value two values x1 and x2 in the case of quadratic regression also can be calculated for a value of y in the regression formula Ex 4 To determine the estimate value for y when x 160 in the regression...

Page 19: ... or will return to the Coefficient Editor You can assign the currently displayed solution to a variable While the solution is displayed press and then the key that corresponds to the name of the variable to which you want to assign it To return to the Coefficient Editor while any solution is displayed press Note Solutions that include are displayed only when the selected calculation type is Polynomi...

Page 20: ... g x values in the same line to be updated accordingly If there is value in the x cell above the currently highlighted x cell pressing or automatically inputs into the highlighted cell the value equal to the value of the cell above it plus the step value So also pressing automatically inputs the value equal to the value of the cell above less the step value The f x and g x values in the same line ...

Page 21: ...uality degree Changing the degree of an inequality causes the values of all Coefficient Editor coefficients to become zero Inequality Mode Calculation Examples 3x3 3x2 x 0 Polynomial 3rd degree inequality ax3 bx2 cx d 0 3 3 1 Note Solutions are displayed as shown in the screen shot nearby when something other than MathI MathO is selected for the Input Output setting on the setup menu All Real Number...

Page 22: ...essage is displayed press to return to the calculation screen Note that this also clears the calculation that contained the error Error Messages Math ERROR The intermediate or final result of the calculation you are performing exceeds the allowable calculation range Your input exceeds the allowable input range particularly when using functions The calculation you are performing contains an illegal ...

Page 23: ...n mode and setup except Language and Contrast settings to their initial default settings by performing the following operation RESET Setup Data Yes Replacing the Battery A low battery is indicated by a dim display even if contrast is adjusted or by failure of figures to appear on the display immediately after you turn on the calculator If this happens replace the battery with a new one Important Re...

Page 24: ...an Same as sinx except when x 2n 1 π 2 Gradian Same as sinx except when x 2n 1 100 sin 1 x cos 1 x 0 x 1 tan 1 x 0 x 9 999999999 1099 sinhx coshx 0 x 230 2585092 sinh 1 x 0 x 4 999999999 1099 cosh 1 x 1 x 4 999999999 1099 tanhx 0 x 9 999999999 1099 tanh 1 x 0 x 9 999999999 10 1 logx lnx 0 x 9 999999999 1099 10x 9 999999999 1099 x 99 99999999 ex 9 999999999 1099 x 230 2585092 𝑥 0 x 1 10100 x2 x 1 1...

Page 25: ...sion above xy 𝑦 𝑥 3 x nPr nCr type functions require consecutive internal calculation which can cause accumulation of errors that occur with each calculation Error is cumulative and tends to be large in the vicinity of a function s singular point and inflection point The range for calculation results that can be displayed in π form when MathI MathO is selected for Input Output on the setup menu is ...

Page 26: ...one or more calculations What is the key operation to take me from the Statistics Mode or Table Mode to a mode where I can perform arithmetic calculations Press Calculate How can I return the calculator to its initial default settings Perform the following operation to initialize calculator settings except the Contrast setting RESET Setup Data Yes When I execute a function calculation why do I get...

Page 27: ...O COMPUTER CO LTD Printed in China SA1502 A Manufacturer CASIO COMPUTER CO LTD 6 2 Hon machi 1 chome Shibuya ku Tokyo 151 8543 Japan Responsible within the European Union Casio Europe GmbH Casio Platz 1 22848 Norderstedt Germany www casio europe com ...