聯立二元一次方程式(I)分數版
若果輸入的係數為整數，答案將會以分數顯示。
| 0 | A | B | C | D | + | 1 | a b/c |
| 2 | ÷ | ( | A | X | - | B | D |
| ) | × | 2 | ( | C | D | + | C |
| X | - | B | Y | - | A | Y | ) |
| + | 1 | a b/c | 2 | ÷ | ( | A | X |
| - | B | D | ) | × | 2 | ( | A |
| Y | - | C | D | ) | STO F1 或 F2 | ||
例題: 解聯立方程 4x + 3y = 2 及 8x – 9y = -1
按 RCL F1 ALGB 4 = 3 = 2 = 8 = 9 +/- = 1 +/- = (顯示1/4) 再按 0 = (顯示1/3)
因此解答為 x = 1/4 及 y = 1/3.