first good build. Part, PartFrame, Matrix

MbDCode/SparseRow.h

@@ -0,0 +1,18 @@
+#pragma once
+#include <memory>
+#include <cmath>
+
+#include "SparseVector.h"
+
+namespace MbD {
+	template <typename T>
+	class SparseRow : public SparseVector<T>
+	{
+	public:
+		SparseRow() {}
+		SparseRow(std::initializer_list<std::pair<const int, T>> list) : SparseVector<T>{ list } {}
+		SparseRow(std::initializer_list<std::initializer_list<T>> list) : SparseVector<T>{ list } {}
+	};
+}
+
+typedef std::shared_ptr<MbD::SparseRow<double>> SpRowDptr;