cleaning up

doc/pub/week34/html/week34-reveal.html

@@ -1654,7 +1654,7 @@ ways of dealing with outliers.
 The Huber cost function is defined as
 <p>&nbsp;<br>
 $$
-H_{\delta}(a)=\left\{\begin{array}\frac{1}{2}a^{2}&{\text{for }}|a|\leq \delta ,\\ \delta (|a|-{\frac {1}{2}\delta ),&{\text{otherwise.}\end{array}\right.
+H_{\delta}(a)=\left\{\begin{array}\frac{1}{2}a^{2}&{\text{for }}|a|\leq \delta ,\\ \delta (|a|-\frac {1}{2}\delta ),&{\text{otherwise.}\end{array}\right.
 $$
 <p>&nbsp;<br>
 

doc/pub/week34/html/week34-solarized.html

@@ -1628,7 +1628,7 @@ ways of dealing with outliers.
 <p>
 The Huber cost function is defined as
 $$
-H_{\delta}(a)=\left\{\begin{array}\frac{1}{2}a^{2}&{\text{for }}|a|\leq \delta ,\\ \delta (|a|-{\frac {1}{2}\delta ),&{\text{otherwise.}\end{array}\right.
+H_{\delta}(a)=\left\{\begin{array}\frac{1}{2}a^{2}&{\text{for }}|a|\leq \delta ,\\ \delta (|a|-\frac {1}{2}\delta ),&{\text{otherwise.}\end{array}\right.
 $$
 
 Here \( a=\boldsymbol{y} - \boldsymbol{\tilde{y}} \).

doc/pub/week34/html/week34.html

@@ -1633,7 +1633,7 @@ ways of dealing with outliers.
 <p>
 The Huber cost function is defined as
 $$
-H_{\delta}(a)=\left\{\begin{array}\frac{1}{2}a^{2}&{\text{for }}|a|\leq \delta ,\\ \delta (|a|-{\frac {1}{2}\delta ),&{\text{otherwise.}\end{array}\right.
+H_{\delta}(a)=\left\{\begin{array}\frac{1}{2}a^{2}&{\text{for }}|a|\leq \delta ,\\ \delta (|a|-\frac {1}{2}\delta ),&{\text{otherwise.}\end{array}\right.
 $$
 
 Here \( a=\boldsymbol{y} - \boldsymbol{\tilde{y}} \).

doc/pub/week34/ipynb/week34.ipynb

@@ -1784,7 +1784,7 @@
    "metadata": {},
    "source": [
     "$$\n",
-    "H_{\\delta}(a)=\\left\\{\\begin{array}\\frac{1}{2}a^{2}&{\\text{for }}|a|\\leq \\delta ,\\\\ \\delta (|a|-{\\frac {1}{2}\\delta ),&{\\text{otherwise.}\\end{array}\\right.\n",
+    "H_{\\delta}(a)=\\left\\{\\begin{array}\\frac{1}{2}a^{2}&{\\text{for }}|a|\\leq \\delta ,\\\\ \\delta (|a|-\\frac {1}{2}\\delta ),&{\\text{otherwise.}\\end{array}\\right.\n",
     "$$"
    ]
   },

doc/src/week34/week34.do.txt

@@ -1205,7 +1205,7 @@ ways of dealing with outliers.
 The Huber cost function is defined as
 !bt
 \[
-H_{\delta}(a)=\left\{\begin{array}\frac{1}{2}a^{2}&{\text{for }}|a|\leq \delta ,\\ \delta (|a|-{\frac {1}{2}\delta ),&{\text{otherwise.}\end{array}\right.
+H_{\delta}(a)=\left\{\begin{array}\frac{1}{2}a^{2}&{\text{for }}|a|\leq \delta ,\\ \delta (|a|-\frac {1}{2}\delta ),&{\text{otherwise.}\end{array}\right.
 \]
 !et
 Here $a=\bm{y} - \bm{\tilde{y}}$.