Stage 29 · Spatial Vectors & Solid Geometry
29.1.1 Arrows in Space
29.1 From Plane Vectors into Space — Spatial Vectors and Linear Operations
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29.1.1 Arrows in Space
Core ideaDraw a directed arrow inside the box from the last stage and you have a spatial vector a — it carries both a size and a direction.
Module goal. Carry the familiar arrow of a plane vector into three dimensions, build up addition, subtraction, scalar multiplication, and tests for collinear and coplanar vectors in space, picking up where the last stage's feel for solid shapes left off.