User manual CASIO FX-5800P

[. . . ] E fx-5800P User's Guide http://world. casio. com/edu/ RJA516644-001V01 k Remove the insulation sheet! Your calculator comes with a special insulation sheet, which isolates the battery from the contacts in the battery compartment, to keep the battery from running down during storage and shipment. Be sure to remove the insulation sheet before trying to use the calculator for the first time. To remove the insulation sheet 1. Pull the tab of the insulation sheet in the direction indicated by the arrow to remove it. Pull to remove 2. After removing the insulation sheet, press the P button on the back of the calculator with a thin, pointed object to initialize the calculator. [. . . ] The full value contained in the cell will appear in the value display area at the bottom of the screen. · While a value is in the value display area, you can convert it using ENG conversion (page 53), sexagesimal-decimal conversion (page 27), or decimal-fraction format conversion (page 22). · Note, however, that you cannot input into the value display area or edit the values displayed there. Sequence Table Columns This column: Contains this data: Value from the start value to the end value specified for n on the table range screen. Sum of an from start value of n up to the n-value in the same line Value from the start value to the end value specified for n+1 on the table range screen. Sum of an+1 from a1 to n+1 in the same line. n an an n+1 an+1 an+1 Returning to the Table Range Screen from the Sequence Table Screen Press J. E-67 k Creating a Sequence Table A Creating an an+1 Type Sequence Table Example: To create a sequence table with the recursion formula an+1 = an+ n + 1 using a range of 1 < n < 10 (n = integer). Enter the RECUR Mode: Select the an+1 type: Input the recursion formula: z2(an)+z1(n)+1 Register the recursion formula: E (This displays the table range screen. ) N6(RECUR) z ­ {TYPE}2(an+1) Input a1 = 2, Start = 1, End = 10: 2E1E10E Create the sequence table: E (This displays the sequence table screen. ) A Creating an an Type Sequence Table 12 Example: To create a sequence table with the general term an = ( )n + 2n ­ 3 using a 2 range of 2 < n < 6 (n = integer). B Enter the RECUR Mode: Select the an type: N6(RECUR) z ­ {TYPE}1(an) Input the general term: '1c2ez1(n)x+ 2z1(n)-3 E-68 Register the general term: E (This displays the table range screen. ) Input Start = 2 and End = 6: 2E6E Create the sequence table: E (This displays the sequence table screen. ) k Sequence Calculation Precautions The following functions cannot be used during sequence calculations. · CALC · SOLVE · Coordinate conversion (Pol(, Rec() 2 2 · d/dx(, d /dx (, (, ( · Independent memory add and subtract (l, 1l(M­)) · Assignment of values to variables (1~(STO)) · Multi-statement input Sequence Table Generation Errors · A sequence table can have up to 199 lines. A Range ERROR occurs if a table range setting causes this to be exceeded. · A "Memory Full" error also occurs if the calculator runs out of calculation result memory while performing a sequence table calculation. Math ERROR during Sequence Calculation If a Math ERROR occurs during sequence table calculation, the sequence table screen appears on the display with "ERROR" in the cell that generated the error. Equation Calculations (EQN) k Equation Calculation Overview This section shows the general operational procedure for solving simultaneous linear equations with two unknowns. · This displays an initial EQN type menu like the one shown below. 2. Press 1(aX+bY=c) to select simultaneous linear equations with two unknowns. · This displays a coefficient editor screen like the one shown below. You can use this screen to input values for the equation's coefficients. 3. 1E0. 5E3E2E3E4E X + 0. 5Y = 3 2X + 3Y = 4 These values will produce the simultaneous equations shown above. 4. · This displays the solution for X. · Use c and f to switch the display between the solutions for X and Y. · To exit the solution screen and return to the coefficient editor screen, press J. E-70 k Selecting an Equation Type The following shows the operations you can use to select an equation type. To select this equation type: Simultaneous Linear Equations with Two Unknowns Simultaneous Linear Equations with Three Unknowns Simultaneous Linear Equations with Four Unknowns Simultaneous Linear Equations with Five Unknowns Quadratic Equation Cubic Equation Perform this key operation: N8(EQN)1 N8(EQN)2 N8(EQN)3 N8(EQN)4 N8(EQN)c1 N8(EQN)c2 EQN type menu item: aX+bY=c aX+bY+cZ=d aX+bY+cZ+dT=e aX+bY+cZ+dT+eU=f aX +bX+c=0 aX +bX +cX+d=0 3 2 2 Note Changing the equation type after you are already using the EQN Mode to perform a calculation will cause all values currently input on the coefficient editor screen to be cleared. k Inputting Values for Coefficients Use the coefficient editor for inputting values for the coefficients of an equation. The coefficient editor screen has cells that you can use to input values for each coefficient. The number of cells that appear on the coefficient editor screen depends on the equation type you selected. A Inputting and Editing Coefficient Values · Use the cursor keys to move the cursor to the cell you want and then input a value. As you input a value or expression, it appears in the lower left corner of the display. · To clear the contents of the cell where the cursor is currently located, press o. · You must press E to finalize input into the cell where the cursor is located. Up to six digits of the input value will be displayed in the cell when you press E. [. . . ] · There is no variable to be solved for in the equation you input for a SOLVE calculation. Range ERROR No Variable · Change the equation to one that has a variable to be solved for. E-134 k Before assuming malfunction of the calculator. . . Perform the following steps whenever an error occurs during a calculation or when calculation results are not what you expected. Note that you should make separate copies of important data before performing these steps. 1 Check the calculation expression to make sure it does not include any errors. 2 Make sure that you are using the correct mode for the type of calculation you are trying to perform. [. . . ]