Distance to a Line

L through origin · p ∈ L · dist(v, p)

Coordinates

v—

p—

Click on line L to place p

Legend

v (vector)

L (line through origin)

L⊥ (orthogonal complement)

p (point on L)

segment pv (distance)

angle ∠(L, pv)

Click on L to place p, then drag ● to slide it along L
Drag ● to move v · Drag ● to rotate L
Near the closest point → magnetic snap