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Resumen del manual
This clears all current EQN Mode input and displays the equation type menu described above. k Inputting Coefficients Use the coefficient editor screen to input the coefficients of an equation. The coefficient editor screen shows input cells for each of the coefficients required by the currently selected equation type. Simultaneous linear Cubic equation equations with two unknowns Rules for Inputting and Editing Coefficients •Data you input is inserted into the cell where the cursor is located. When you register input into a cell, the cursor moves to the next cell to the right. •When simultaneous linear equations with three unknowns or cubic equation is selected as the equation type, the d column will not be visible on the display when the coefficient editor screen is first displayed. The d column will become visible when you move the cursor to it, which causes the screen to shift. E-55 • The values and expressions you can input on the coefficient editor screen are the same as those you can input in the COMP Mode with Linear format. •Pressing A while inputting data clears your current input. • After inputting data, press =. This registers the value and displays up to six of its digits in the currently selected cell. •To change the contents of a cell, use the cursor keys to move the cursor to the cell and then input the new data. Initializing All Coefficients to Zero You can clear all coefficients to zero by pressing the A key while inputting values on the coefficient editor screen. Coefficient Editor Screen Input Precautions Coefficient editor screen precautions are basically the same as those for the STAT editor screen. The only difference is that the first STAT editor screen precaution does not apply in the case of the coefficient editor screen. For details, see “STAT Editor Screen Input Precautions”. k Solution Display After inputting and registering values on the coefficient editor screen, press = to display the solution(s) for the equation. • Each press of =displays the next solution, if there is one. Pressing = while the final solution is displayed returns to the coefficient editor screen. • In the case of simultaneous linear equations, you can use f and c to switch the display between the solutions for X and Y (and Z). •When there are multiple solutions for a quadratic or cubic equation, you can use the f and c keys to scroll the display between X1, X2, and X3. The actual number of solutions depends on the equation. •Pressing Awhile a solution is displayed will return to the coefficient editor screen. • The display format of solutions is in accordance with the input/ output format and complex number display format settings of the calculator’s setup screen. • Note that you cannot transform values to engineering notation while an equation solution is displayed. Appendix Equation Calculation: <#091> to <#095> E-56 Matrix Calculations (MATRIX) Matrix Calculations (MATRIX) You can save matrices under the names “MatA”, “MatB”, and “MatC” in matrix memory. Matrix calculation results are stored in a special Matrix Answer Memory named “MatAns”. All calculations in this section are performed in the MATRIX Mode (N6). k Creating and Managing a Matrix Creating a Matrix and Storing It in Matrix Memory (1) In the MATRIX Mode, press 14(MATRIX)1(Dim). • This displays the matrix selection screen. •Note that the matrix selection screen also appears whenever you enter the MATRIX Mode. (2) Press a number key (1, 2, or 3) to specify the name of the matrix you want to select. • This displays a screen for configuring dimension settings. cf (3)Press a number key (1 through 6) to specify the matrix dimension you want to use. •Pressing a number key to specify the matrix dimension causes the matrix editor screen to appear. MAT “A” stands for “MatA”. (4) Use the matrix editor screen to input each of the elements into the matrix. •Input is subject to the same rules as those that govern the coefficient editor screen in the EQN Mode. For more information, see “Rules for Inputting and Editing Coefficients”. • If you want to create another matrix, repeat this procedure from step (1). E-57 Copying the Contents of One Matrix to Another Matrix (1) Use the matrix editor screen to display the matrix you want to copy, or display the Matrix Answer Memory screen. • If you want to copy Matrix A, for example, press 14(MATRIX) 2(Data)1(MatA). (2) Press 1t(STO). • This causes the “STO” indicator to appear on the display. (3) Specify the destination of the copy operation. To specify this destination: Press this key: Matrix A y(MatA) Matrix B e(MatB) Matrix C w(MatC) •Pressing e(MatB) copies the matrix to Matrix B, and displays the matrix editor screen for Matrix B. k Performing Matrix Calculations Pressing Awhile the matrix selection screen or matrix editor screen is on the display switches to the matrix calculation screen. Matrix Answer Memory Screen The Matrix Answer Memory (MatAns) screen shows the results of matrix calculations. MAT Stands for...