
Re: Distance Between Lines in R^3 (fwd)
Posted:
Jul 26, 2013 10:26 AM


William Elliot <marsh@panix.com> wrote in news:Pine.NEB.4.64.1307252033010.24715@panix3.panix.com:
> How do we find the shortest distance between two lines L, L' in R^3
Each line has a direction vector. The cross product n of the two direction vectors is perpendicular to both lines. Pick a point on each line, P and Q. The projection of the vector from P to Q onto the vector n is the distance.

