Fixed error in continuous least squares approximation with legendre p…

…olynomials

files/least_squares_approximation.tex

@@ -290,7 +290,7 @@ \subsubsection{Kontinuierliche Least-Squares}
 
 Koeffizenten:
 $$
-	p(x) = \sum_{j=0}^m a_j T_j(x) \quad \text{wobei} \quad
+	p(x) = \sum_{j=0}^m a_j P_j(x) \quad \text{wobei} \quad
 	a_j = \frac{2j+1}{2} \cdot \int\limits_{-1}^{1}y(x) P_j(x) \cdot \mathrm{d}x \qquad (j=0,1,...,m)
 $$