chore: update paper.tex for wg04.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/source/wg04/paper.tex b/source/wg04/paper.tex
index 9169d08..2f7cab6 100644
--- a/source/wg04/paper.tex
+++ b/source/wg04/paper.tex
@@ -44,7 +44,7 @@ Let a function which returns a value in $\mathbb{R}$ be:
 Named $Z(x) \in \mathbb{R}$. Such that $Z(x)$ is a compute-function of argument $x$.
 \subsection{DEFINITION OF THE A-EQUATION AND I-INTEGRAL:}
 \begin{equation}
-	I_{2}(y, z, t, a, b) \coloneqq \int_{a}^{b} E_{1}(x, y, z, t) dx, \quad E_{1}(x, y, z, t) := Z(x \cdot t, y \cdot z)
+	I_{2}(y, z, t, a, b) \coloneqq \int_{a}^{b} E_{1}(x, y, z, t) dx, \quad E_{1}(x, y, z, t) := \tilde{Z}(x \cdot t, y \cdot z)
 \end{equation}
 Where $t \in \mathbb{R}$ if and only if $0 < t$.
 \subsection{DEFINITION OF THE K-EQUATION:}