Casio fx-570ES User Manual page 58

• 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 X
X , and X
2 3
equation.
• Pressing A while 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>
. The actual number of solutions depends on the
E-56
,
1