Equation Calculations | (EQN) |
All calculations in this section are performed in the EQN Mode (N5).
kEquation Types
An equation type menu appears when you press N5(EQN) and enter the EQN Mode.
Key |
| Menu Item | Equation Type |
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| Simultaneous Linear |
1 | anX + bnY = cn | Equations with Two | |
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| Unknowns |
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| Simultaneous Linear |
2 | anX + bnY + cnZ = dn | Equations with Three | |
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| Unknowns |
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3 | aX2 | + bX + c = 0 | Quadratic Equation |
4 | aX3 | + bX2 + cX + d = 0 | Cubic Equation |
Changing the Current Equation Type Setting
Press N5(EQN) to
kInputting 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 |
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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.