From 01c452cb81acc8d56a059eebca1d4704f7753a85 Mon Sep 17 00:00:00 2001
From: Youssef Kashef <youssef.kashef@gmail.com>
Date: Wed, 6 May 2020 18:43:12 +0200
Subject: [PATCH] fix eq

---
 notes/03_kernel-pca/3_kpca.tex | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/notes/03_kernel-pca/3_kpca.tex b/notes/03_kernel-pca/3_kpca.tex
index 2980b59..cba4959 100644
--- a/notes/03_kernel-pca/3_kpca.tex
+++ b/notes/03_kernel-pca/3_kpca.tex
@@ -571,9 +571,8 @@ \subsubsection{Normalize the eigenvectors}
 
 Recall, that PCA solves the eigenvalue problem
 
-\begin{equation} 
-%\label{eq:cov}
-\vec C_{\phi} = \frac{1}{p} \sum_{\alpha=1}^{p} \vec{\phi}_{(\vec{x}^{(\alpha)})} \vec{\phi}^{\top}_{(\vec{x}^{(\alpha)})}
+\begin{equation}
+\vec C_{\phi} \, \vec e = \lambda \vec e
 \end{equation}
 
 At the solution, $\vec e^\top \vec e = 1$. $\vec e$ are normalized eigenvectors to use as PCs.