a simple class for continued fractions introduced

contfrac.h

@@ -0,0 +1,45 @@
+/*
+    LA: linear algebra C++ interface library
+    Copyright (C) 2022 Jiri Pittner <jiri.pittner@jh-inst.cas.cz> or <jiri@pittnerovi.com>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#ifndef _CONTFRAC_H
+#define _CONTFRAC_H
+
+#include "la_traits.h"
+#include "vec.h"
+
+namespace LA {
+
+
+template <typename T>
+class ContFrac : public NRVec<T> {
+public:
+	ContFrac():  NRVec<T>() {};
+	template<int SIZE>  ContFrac(const T (&a)[SIZE]) : NRVec<T>(a) {};
+	ContFrac(const NRVec<T> &v) : NRVec<T>(v) {}; //allow implicit conversion from NRVec
+	ContFrac(const int n) : NRVec<T>(n+1) {};
+
+	int length() const {return NRVec<T>::size()-1;};
+	void resize(const int n, const bool preserve=true) {NRVec<T>::resize(n+1,preserve);}
+	
+};
+
+
+
+}//namespace
+#endif