Rhett Allain

Oct 10, 2021

9 min read

Here Are 4 Ways to Find the Distance Between a Point and a Line in 3D

Working with stuff in 3D can seem complicated — but if you embrace the idea of vectors, everything can work out just fine.

One of the problems you will see in your calculus course (usually in Calc-3) is to find the shortest distance between a point and a line (in 3D). I’ve already gone over the idea of parametric equations and the intersection…