diff --git a/docs/en/week11/11-2.md b/docs/en/week11/11-2.md
index a67419b02..a6f7d5386 100644
--- a/docs/en/week11/11-2.md
+++ b/docs/en/week11/11-2.md
@@ -83,15 +83,13 @@ This margin-base loss allows for different inputs to have variable amounts of ta
 ### Hinge Embedding Loss - `nn.HingeEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             x_n, &\quad y_n=1,  \\
-             \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
-             \end{array}
+     \begin{array}{lr}
+     x_n, &\quad y_n=1,  \\
+     \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
+     \end{array}
 \right.
-\end{equation}
 $$
 
 Hinge embedding loss used for semi-supervised learning by measuring whether two inputs are similar or dissimilar. It pulls together things that are similar and pushes away things are dissimilar. The $y$ variable indicates whether the pair of scores need to go in a certain direction. Using a hinge loss, the score is positive if $y$ is 1 and some margin $\Delta$ if $y$ is -1.
@@ -100,15 +98,13 @@ Hinge embedding loss used for semi-supervised learning by measuring whether two
 ### Cosine Embedding Loss - `nn.CosineEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             1-\cos(x_1,x_2), & \quad y=1,  \\
-             \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
-             \end{array}
+     \begin{array}{lr}
+     1-\cos(x_1,x_2), & \quad y=1,  \\
+     \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
+     \end{array}
 \right.
-\end{equation}
 $$
 
 This loss is used for measuring whether two inputs are similar or dissimilar, using the cosine distance, and is typically used for learning nonlinear embeddings or semi-supervised learning.
diff --git a/docs/en/week15/15-2.md b/docs/en/week15/15-2.md
index e1502adc6..ea312ed0c 100644
--- a/docs/en/week15/15-2.md
+++ b/docs/en/week15/15-2.md
@@ -118,7 +118,7 @@ In technical terms, if free energy is
 
 Objective -  Finding a well behaved energy function
 
-A loss functional, minimized during learning, is used to measure the quality of the available energy functions. In simple terms, loss functional is a scalar function that tells us how good our energy function is. A distinction should be made between the energy function, which is minimized by the inference process, and the loss functional (introduced in Section 2), which is minimized by the learning process.
+A loss functional, minimized during learning, is used to measure the quality of the available energy functions. In simple terms, loss functional is a scalar function that tells us how good our energy function is. A distinction should be made between the energy function, which is minimized by the inference process, and the loss functional, which is minimized by the learning process.
 
 $$\mathcal{L}(F(\cdot),Y) = \frac{1}{N} \sum_{n=1}^{N} l(F(\cdot),\vect{y}^{(n)}) \in \R$$
 
diff --git a/docs/es/week11/11-2.md b/docs/es/week11/11-2.md
index e707e010e..ac835dc2b 100644
--- a/docs/es/week11/11-2.md
+++ b/docs/es/week11/11-2.md
@@ -200,17 +200,16 @@ $$
 -->
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             x_n, &\quad y_n=1,  \\
-             \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
-             \end{array}
+     \begin{array}{lr}
+     x_n, &\quad y_n=1,  \\
+     \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
+     \end{array}
 \right.
-\end{equation}
 $$
 
+
 <!--Hinge embedding loss used for semi-supervised learning by measuring whether two inputs are similar or dissimilar. It pulls together things that are similar and pushes away things are dissimilar. The $y$ variable indicates whether the pair of scores need to go in a certain direction. Using a hinge loss, the score is positive if $y$ is 1 and some margin $\Delta$ if $y$ is -1.
 -->
 
@@ -237,15 +236,13 @@ $$
 -->
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             1-\cos(x_1,x_2), & \quad y=1,  \\
-             \max(0,\cos(x_1,x_2)-\text{margen}), & \quad y=-1
-             \end{array}
+     \begin{array}{lr}
+     1-\cos(x_1,x_2), & \quad y=1,  \\
+     \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
+     \end{array}
 \right.
-\end{equation}
 $$
 
 <!--This loss is used for measuring whether two inputs are similar or dissimilar, using the cosine distance, and is typically used for learning nonlinear embeddings or semi-supervised learning.
@@ -490,7 +487,7 @@ Esta pérdida hace que la energía de la respuesta correcta sea pequeña, y al m
 -->
 
 
-## Pérdida de Margen Generalizado 
+## Pérdida de Margen Generalizado
 
 <!--**Most offending incorrect answer**: discrete case
 Let $Y$ be a discrete variable. Then for a training sample $(X^i,Y^i)$, the *most offending incorrect answer* $\bar Y^i$ is the answer that has the lowest energy among all possible answers that are incorrect:
diff --git a/docs/fr/week11/11-2.md b/docs/fr/week11/11-2.md
index d8674b3ba..15d15a621 100644
--- a/docs/fr/week11/11-2.md
+++ b/docs/fr/week11/11-2.md
@@ -175,16 +175,15 @@ Hinge embedding loss used for semi-supervised learning by measuring whether two
 
 ### Hinge Embedding Loss - `nn.HingeEmbeddingLoss()`
 
+
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             x_n, &\quad y_n=1,  \\
-             \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
-             \end{array}
+     \begin{array}{lr}
+     x_n, &\quad y_n=1,  \\
+     \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
+     \end{array}
 \right.
-\end{equation}
 $$
 
 Cette perte est utilisée pour l'apprentissage semi-supervisé en mesurant si deux entrées sont similaires ou dissemblables. Elle rassemble les choses qui sont similaires et repousse celles qui sont dissemblables. La variable $y$ indique si la paire de notes doit aller dans une certaine direction. En utilisant une telle perte, le score est positif si $y$ est égal à 1 et une certaine marge $\Delta$ si $y$ est égal à -1.
@@ -215,15 +214,13 @@ This loss is used for measuring whether two inputs are similar or dissimilar, us
 ### Cosine Embedding Loss - `nn.CosineEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             1-\cos(x_1,x_2), & \quad y=1,  \\
-             \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
-             \end{array}
+     \begin{array}{lr}
+     1-\cos(x_1,x_2), & \quad y=1,  \\
+     \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
+     \end{array}
 \right.
-\end{equation}
 $$
 
 
diff --git a/docs/ja/week11/11-2.md b/docs/ja/week11/11-2.md
index 5d506ef8d..f747928bc 100644
--- a/docs/ja/week11/11-2.md
+++ b/docs/ja/week11/11-2.md
@@ -100,15 +100,13 @@ $$
 ### Hinge Embedding Loss - `nn.HingeEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             x_n, &\quad y_n=1,  \\
-             \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
-             \end{array}
+     \begin{array}{lr}
+     x_n, &\quad y_n=1,  \\
+     \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
+     \end{array}
 \right.
-\end{equation}
 $$
 
 <!-- Hinge embedding loss used for semi-supervised learning by measuring whether two inputs are similar or dissimilar. It pulls together things that are similar and pushes away things are dissimilar. The $y$ variable indicates whether the pair of scores need to go in a certain direction. Using a hinge loss, the score is positive if $y$ is 1 and some margin $\Delta$ if $y$ is -1. -->
@@ -118,15 +116,13 @@ $$
 ### Cosine Embedding Loss - `nn.CosineEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             1-\cos(x_1,x_2), & \quad y=1,  \\
-             \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
-             \end{array}
+     \begin{array}{lr}
+     1-\cos(x_1,x_2), & \quad y=1,  \\
+     \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
+     \end{array}
 \right.
-\end{equation}
 $$
 
 <!-- This loss is used for measuring whether two inputs are similar or dissimilar, using the cosine distance, and is typically used for learning nonlinear embeddings or semi-supervised learning.
@@ -333,7 +329,7 @@ If the energy function is able to ensure that the energy of the *most offending
 $$
 L_{\text{hinge}}(W,Y^i,X^i)=\max(0,m+E(W,Y^i,X^i))-E(W,\bar Y^i,X^i)
 $$
-<!-- 
+<!--
 Where $\bar Y^i$ is the *most offending incorrect answer*. This loss enforces that the difference between the correct answer and the most offending incorrect answer be at least $m$. -->
 ここで、$bar Y^i$は、*最も問題のある不正解*です。この損失は、正解と最も問題のある不正解の差が少なくとも$m$であることを要請します。
 
diff --git a/docs/ko/week11/11-2.md b/docs/ko/week11/11-2.md
index d8ae044c1..afdfef19a 100644
--- a/docs/ko/week11/11-2.md
+++ b/docs/ko/week11/11-2.md
@@ -106,15 +106,13 @@ $$
 ### 힌지 임베딩 손실 - `nn.HingeEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             x_n, &\quad y_n=1,  \\
-             \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
-             \end{array}
+     \begin{array}{lr}
+     x_n, &\quad y_n=1,  \\
+     \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
+     \end{array}
 \right.
-\end{equation}
 $$
 
 <!--Hinge embedding loss used for semi-supervised learning by measuring whether two inputs are similar or dissimilar. It pulls together things that are similar and pushes away things are dissimilar. The $y$ variable indicates whether the pair of scores need to go in a certain direction. Using a hinge loss, the score is positive if $y$ is 1 and some margin $\Delta$ if $y$ is -1.-->
@@ -125,15 +123,13 @@ $$
 ### 코사인 임베딩 손실 - `nn.CosineEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             1-\cos(x_1,x_2), & \quad y=1,  \\
-             \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
-             \end{array}
+     \begin{array}{lr}
+     1-\cos(x_1,x_2), & \quad y=1,  \\
+     \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
+     \end{array}
 \right.
-\end{equation}
 $$
 
 <!--This loss is used for measuring whether two inputs are similar or dissimilar, using the cosine distance, and is typically used for learning nonlinear embeddings or semi-supervised learning.-->
@@ -438,4 +434,4 @@ $$
 
 <!--We assume that $Y$ is discrete, but if it were continuous, the sum would be replaced by an integral. Here, $E(W, Y^i,X^i)-E(W,y,X^i)$ is the difference of $E$ evaluated at the correct answer and some other answer. $C(Y^i,y)$ is the margin, and is generally a distance measure between $Y^i$ and $y$. The motivation is that the amount we want to push up on a incorrect sample $y$ should depend on the distance between $y$ and the correct sample $Y_i$. This can be a more difficult loss to optimize.-->
 
-우리는 $Y$가 이산이지만, 만약 연속이라면 그 합은 적분으로 바뀔 것이라 가정한다. 여기서 $E(W, Y^i,X^i)-E(W,y,X^i)$는 정답과 어떤 다른 답에서 측정된 $E$의 차이이다. $C(Y^i,y)$는 마진이며 일반적으로 $Y^i$와 $y$ 사이의 거리값을 나타낸다. 동기는 우리가 잘못된 표본 $y$에서 밀어올리고 싶은 합이 $y$와 옳은 표본 $Y_i$ 사이 거리에 따라 달라져야 한다는 것이다. 이것은 최적화하는데 더 어려운 손실이 될 수 있는 것이다.
\ No newline at end of file
+우리는 $Y$가 이산이지만, 만약 연속이라면 그 합은 적분으로 바뀔 것이라 가정한다. 여기서 $E(W, Y^i,X^i)-E(W,y,X^i)$는 정답과 어떤 다른 답에서 측정된 $E$의 차이이다. $C(Y^i,y)$는 마진이며 일반적으로 $Y^i$와 $y$ 사이의 거리값을 나타낸다. 동기는 우리가 잘못된 표본 $y$에서 밀어올리고 싶은 합이 $y$와 옳은 표본 $Y_i$ 사이 거리에 따라 달라져야 한다는 것이다. 이것은 최적화하는데 더 어려운 손실이 될 수 있는 것이다.
diff --git a/docs/tr/week11/11-2.md b/docs/tr/week11/11-2.md
index 51130e31f..9ee1e5736 100644
--- a/docs/tr/week11/11-2.md
+++ b/docs/tr/week11/11-2.md
@@ -141,7 +141,6 @@ Bu marj bazlı kayıp terimi, farklı girdilerin değişken miktarlarda hedefler
 <!--### Hinge Embedding Loss - `nn.HingeEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
              \begin{array}{lr}
@@ -149,22 +148,19 @@ l_n =
              \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
              \end{array}
 \right.
-\end{equation}
 $$
 
 Hinge embedding loss used for semi-supervised learning by measuring whether two inputs are similar or dissimilar. It pulls together things that are similar and pushes away things are dissimilar. The $y$ variable indicates whether the pair of scores need to go in a certain direction. Using a hinge loss, the score is positive if $y$ is 1 and some margin $\Delta$ if $y$ is -1.-->
 ### Hinge Gömü Kayıp Terimi (Hinge Embedding Loss) - `nn.HingeEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             x_n, &\quad y_n=1,  \\
-             \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
-             \end{array}
+     \begin{array}{lr}
+     x_n, &\quad y_n=1,  \\
+     \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
+     \end{array}
 \right.
-\end{equation}
 $$
 
 İki girdinin benzer veya farklı olup olmadığını ölçmek için yarı denetimli öğrenmede kullanılan bir gömme kaybıdır. Benzer olan şeyleri bir araya getirir ve farklı olan şeyleri uzaklaştırır. $y$ değişkeni, puan çiftinin belirli bir yönde gitmesi gerekip gerekmediğini gösterir. Hinge kaybı kullanıldığında, puan $y$ 1 ise pozitif,  $y$ -1 ise  $\Delta$ marjı elde edilir.
@@ -172,15 +168,13 @@ $$
 <!--### Cosine Embedding Loss - `nn.CosineEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             1-\cos(x_1,x_2), & \quad y=1,  \\
-             \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
-             \end{array}
+     \begin{array}{lr}
+     1-\cos(x_1,x_2), & \quad y=1,  \\
+     \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
+     \end{array}
 \right.
-\end{equation}
 $$
 
 This loss is used for measuring whether two inputs are similar or dissimilar, using the cosine distance, and is typically used for learning nonlinear embeddings or semi-supervised learning.
@@ -192,15 +186,13 @@ This loss is used for measuring whether two inputs are similar or dissimilar, us
 ### Kosinüs Gömme Terimi (Cosine Embedding Loss) - `nn.CosineEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
-\left\{
+  \left\{
              \begin{array}{lr}
              1-\cos(x_1,x_2), & \quad y=1,  \\
-             \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
+             \max(0,\cos(x_1,x_2)-\text{margine}), & \quad y=-1
              \end{array}
-\right.
-\end{equation}
+   \right.
 $$
 
 Bu kayıp, kosinüs mesafesini kullanarak iki girişin benzer veya farklı olup olmadığını ölçmek için kullanılır ve genellikle doğrusal olmayan gömmeleri öğrenmek veya yarı denetimli öğrenme için kullanılır.
@@ -362,7 +354,7 @@ Bu kayıp fonksiyonu, olasılıkları ile orantılı olarak tüm cevapların ene
 
 Olasılık modeli, aşağıdakileri içeren bir EBM'dir:
 
-* Enerji Y (tahmin edilecek değişken) üzerinden integre edilebilinir 
+* Enerji Y (tahmin edilecek değişken) üzerinden integre edilebilinir
 * Kayıp işlevi, negatif log-olabilirliktir.
 
 
diff --git a/docs/zh/week11/11-2.md b/docs/zh/week11/11-2.md
index f9945f1f5..116c05db9 100644
--- a/docs/zh/week11/11-2.md
+++ b/docs/zh/week11/11-2.md
@@ -115,15 +115,13 @@ $$
 ### 合页嵌入损失 (Hinge Embedding Loss) - `nn.HingeEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             x_n, &\quad y_n=1,  \\
-             \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
-             \end{array}
+     \begin{array}{lr}
+     x_n, &\quad y_n=1,  \\
+     \max\{0,\Delta-x_n\}, &\quad y_n=-1  \\
+     \end{array}
 \right.
-\end{equation}
 $$
 
 <!--Hinge embedding loss used for semi-supervised learning by measuring whether two inputs are similar or dissimilar. It pulls together things that are similar and pushes away things are dissimilar. The $y$ variable indicates whether the pair of scores need to go in a certain direction. Using a hinge loss, the score is positive if $y$ is 1 and some margin $\Delta$ if $y$ is -1.
@@ -133,15 +131,13 @@ $$
 ### 余弦嵌入损失 (Cosine Embedding Loss) - `nn.CosineEmbeddingLoss()`
 
 $$
-\begin{equation}
 l_n =
 \left\{
-             \begin{array}{lr}
-             1-\cos(x_1,x_2), & \quad y=1,  \\
-             \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
-             \end{array}
+     \begin{array}{lr}
+     1-\cos(x_1,x_2), & \quad y=1,  \\
+     \max(0,\cos(x_1,x_2)-\text{margin}), & \quad y=-1
+     \end{array}
 \right.
-\end{equation}
 $$
 
 <!--This loss is used for measuring whether two inputs are similar or dissimilar, using the cosine distance, and is typically used for learning nonlinear embeddings or semi-supervised learning.