From 403b8888ab0702f4d4cf4c7df24adc8c3fa45ab0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Patrik=20M=C3=BCller?= <patrik.mueller@ost.ch>
Date: Mon, 7 Mar 2022 17:19:47 +0100
Subject: Start paper about Laguerre polynomials

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 buch/papers/laguerre/definition.tex | 48 +++++++++++++++++++++++++++++++++++++
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+%
+% definition.tex 
+%
+% (c) 2022 Patrik Müller, Ostschweizer Fachhochschule
+%
+\section{Definition
+\label{laguerre:section:definition}}
+\rhead{Definition}
+
+\begin{align}
+    x y''(x) + (1 - x) y'(x) + n y(x)
+    =
+    0 
+    \label{laguerre:dgl}
+\end{align}
+
+\begin{align}
+    L_n(x)
+    =
+    \sum_{k=0}^{n} 
+    \frac{(-1)^k}{k!}
+    \begin{pmatrix}
+        n \\
+        k
+    \end{pmatrix}
+    x^k
+    \label{laguerre:polynom}
+\end{align}
+
+\begin{align}
+    x y''(x) + (\alpha + 1 - x) y'(x) + n y(x)
+    =
+    0 
+    \label{laguerre:generell_dgl}
+\end{align}
+
+\begin{align}
+    L_n^\alpha (x)
+    =
+    \sum_{k=0}^{n} 
+    \frac{(-1)^k}{k!}
+    \begin{pmatrix}
+        n + \alpha \\
+        n - k
+    \end{pmatrix}
+    x^k
+    \label{laguerre:polynom}
+\end{align}
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