diff --git a/semester3/numcs/numcs-summary.pdf b/semester3/numcs/numcs-summary.pdf
index c51eb3d..2950c59 100644
Binary files a/semester3/numcs/numcs-summary.pdf and b/semester3/numcs/numcs-summary.pdf differ
diff --git a/semester3/numcs/parts/01_interpolation/00_polynomial/04_chebyshev-interpolation.tex b/semester3/numcs/parts/01_interpolation/00_polynomial/04_chebyshev-interpolation.tex
index 8b949f5..34d2250 100644
--- a/semester3/numcs/parts/01_interpolation/00_polynomial/04_chebyshev-interpolation.tex
+++ b/semester3/numcs/parts/01_interpolation/00_polynomial/04_chebyshev-interpolation.tex
@@ -160,5 +160,5 @@ die Ableitungen der Approximation berechnen. Die \texttt{chebder}-Funktion nimmt
 
         coeffs = dct_vals / n
         coeffs[0] /= 2
-        self.coeffs = coeffs
+        return coeffs
 \end{code}