Argh... Make that
c - n \cdot p It always helps to check that points on a line are zero distance from the line. On Fri, Oct 14, 2011 at 9:57 AM, Ted Dunning <ted.dunn...@gmail.com> wrote: > This form is equivalent to a dot product: > > n \cdot x = c > > where n is the normalized vector n = (A, B, ...) / | (A, B, ...) |, x is > the vector form of the point and c = Z / | n | > > The vector n is unit length and orthogonal to the line and c is the > shortest distance to the origin. > > The distance from point p to the line is just > > n \cdot p + c > > > On Fri, Oct 14, 2011 at 12:37 AM, Sean Owen <sro...@gmail.com> wrote: > >> I forget what the answer is for the Ax + By + ... = Z form; I should >> really look it up. I missed that day in 6th grade or something. >> > >