From 2cc519670b14a873cffe68054134b210a5b561c6 Mon Sep 17 00:00:00 2001 From: Sm1les Date: Mon, 13 Nov 2023 23:33:09 +0800 Subject: [PATCH] =?UTF-8?q?=E6=96=B0=E5=A2=9E=E5=8B=98=E8=AF=AF?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- docs/errata.md | 1 + 1 file changed, 1 insertion(+) diff --git a/docs/errata.md b/docs/errata.md index 4083f35..4f157d0 100644 --- a/docs/errata.md +++ b/docs/errata.md @@ -4,6 +4,7 @@ ## 第2版第1次印刷(2023.06) - 172页,$\|\mathbf{A}\|_F=\sum_{i=1}^m \sum_{j=1}^n\left|a_{i j}\right|^2$ 改为 $\|\mathbf{A}\|_F^{2}=\sum_{i=1}^m \sum_{j=1}^n\left|a_{i j}\right|^2$ (感谢@吴津宇) +- 98页,“6.6.5核对率回归”中的第2个公式,其中的$\boldsymbol{x}_{i}$改为$\boldsymbol{z}_{i}$(感谢南瓜书读者交流群11的@[太阳]🌈) ## 第1版第12次印刷(2022.06) - 式(3.9)中$\hat{\boldsymbol{x}}_i=(x_{1};...;x_{d};1)\in\mathbb{R}^{(d+1)\times 1}$改为$\hat{\boldsymbol{x}}_i=(x_{i1};...;x_{id};1)\in\mathbb{R}^{(d+1)\times 1}$(感谢@Link2Truth)