地图距离计算示例

GeoGebra 命令及参数

1. Polygon((instructionEdge, y(Corner[1])), (instructionEdge, y(Corner[3])), Corner[4], Corner[1]) → instruction, instructionRight, instructionTop, instructionLeft, instructionBottom
2. Line((x(Corner[1]) + ((2 * indent) * screenwidth), 0), yAxis) → align1
3. Line((x(Corner[1]) + ((3 * indent) * screenwidth), 0), yAxis) → align2
4. Line((x(Corner[1]) + ((4 * indent) * screenwidth), 0), yAxis) → align3
5. If(a > 0, "minimum", If[a < 0, "maximum", ""]) → minmax
6. If(a > 0, LaTeX[">"], If[a < 0, LaTeX["<"], ""]) → signa
7. If(a > 0, LaTeX["\ge"], If[a < 0, LaTeX["\le"], ""]) → domainsign
8. Segment((0, 0), criticalpt) → trapleft
9. Point(trapleft) → A
10. Ray(criticalpt, Vector[(1, 0)]) → trapright
11. Point(trapright) → B