# Tangent Distance Graphically

## Tangent Distance Graphically

## X

## XT

## Y

## Y-X

## D(X, Y)

## D(X, Y) = Hairy Minimization?

## YT

** Notes: **

Ah, but the tangent distance is not so simple.

It is the minimum distance between two linear sub-spaces. That’s a hairy minimization right? Wrong!