向量PQ的模与方向

GeoGebra 命令及参数

1. Product(Zip[Element[f, 1]^(Mod[Element[f, 2], 2]), f, Factors[m2]]) → m2sf
2. Angle(P2, P1, P0) → α
3. Segment(P0, P1) → a
4. Segment(P1 + (0, (-0.5)), P2 + (0, (-0.5))) → b1
5. Segment(P1, P2) → b
6. Segment(P0 - (0.5, 0), P1 - (0.5, 0)) → a1
7. GCD(v1, v2) → CommFact
8. Vector(P, Q) → v
9. TableText({{Formula2a, "\textsf{Magnitude formula from the Pythagorean Theorem}"}, {Formula2b, "\textsf{Substitute.}"}, {Formula2c, "\textsf{Simplify.}"}, {Formula2d, " "}}, "l") → work2
10. TableText({{Formula2e, "\textsf{Magnitude formula from the distance formula}"}, {Formula2f, "\textsf{Substitute.}"}, {Formula2b, "\textsf{Simplify.}"}, {Formula2d, " "}}, "l") → work3