笛卡尔坐标系入门

GeoGebra 命令及参数

1. Segment(B_o, ((sgnAx * s_x), 0)) → l_{Ax}
2. Midpoint(l_{Ax}) → M_{Ax}
3. Segment(B_o, (x(B_o), (sgnAy * s_y))) → l_{Ay}
4. Midpoint(l_{Ay}) → M_{Ay}
5. Vector(A, (x(A), y(A) - (sgnAy * i_y))) → u
6. Vector(A, (x(A) - (sgnAx * i_x), y(A))) → v
7. Segment(P_{xaxisleftstart}, P_{xaxisrightarrow}) → xaxisline
8. Segment(P_{yaxisbottomstart}, P_{yaxistoparrow}) → yaxisline
9. Textfield(count) → InputBoxDebugger
10. Vector(A, A_x) → w
11. Vector(A, A_y) → a
12. Segment((0, 0), A_x) → s_{ax}
13. Polygon((-6.984552595476271, -4.030894809047458), (6.9691051909525426, -4.077237022618646), (6.9691051909525426, 3.922762977381354), (-6.984552595476271, 3.9691051909525417)) → q1, f, g, h, i