chore: wg04: update paper.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/source/wg04/paper.2.tex b/source/wg04/paper.2.tex
index 0de2bb0..f9ac69d 100644
--- a/source/wg04/paper.2.tex
+++ b/source/wg04/paper.2.tex
@@ -32,12 +32,14 @@ We assume $x \in \mathbb{R}, \quad a, b \in \mathbb{N}, \quad 0 < a < b < \cos(0
 
 \subsection{DEFINITION OF THE S-INTEGRAL:}
 \begin{equation}
-    I_{1}(a, b, x) \coloneqq \int_{a}^{b} S(x)dx
+    I_{1}(a, b, t, u) \coloneqq \int_{a}^{b} S(t, u)dt
 \end{equation}
 \subsection{DEFINITION OF THE S-FUNCTION:}
 \begin{equation}
     S(x, u) = \sum_{k=1}^{t} (\frac{dx}{du}\cdot k) \cdot x, \quad x > 0, \quad t > k
 \end{equation}
 
+\section{INTRODUCTION}
+
 \end{document}