求解方程组范例

GeoGebra 命令及参数

1. Intersect(b, yAxis) → A
2. Intersect(b, xAxis) → B
3. Intersect(xAxis, yAxis) → C
4. Polygon(A, B, C) → poly1, c, a_3, b_3
5. Intersect(a, yAxis) → D
6. Intersect(a, xAxis) → E
7. Polygon(D, E, C) → poly2, c_3, d, e
8. TableText({{((((a_1 * "\mathit{w} +") * b_1) * "\mathit{p} \leq") * c_1)}, {((((a_2 * "\mathit{w} +") * b_2) * "\mathit{p} \leq") * c_2)}, {"\mathit{w} \geq0"}, {"\mathit{p} \geq 0"}}, "{") → text11
9. TableText({{((((((((a_1 * "(") * h) * ")+") * b_1) * "(") * i) * ") \leq") * c_1)}, {((((((((a_2 * "(") * h) * ")+") * b_2) * "(") * i) * ") \leq") * c_2)}, {(h * "\geq0")}, {(i * " \geq 0")}}, "{") → text12
10. TableText({{((I * " \leq") * c_1)}, {((j * "\leq") * c_2)}, {(h * "\geq0")}, {(i * " \geq 0")}}, "{") → text13