private static void Exercitiul1() { vector a = new vector(); vector b = new vector(); a.init(); b.init(); if (b.isNull()) { b.init(); } Console.WriteLine(a.tostring("a")); Console.WriteLine(b.tostring("b")); string sum = produsScalar(a, b); Console.WriteLine("axb= " + sum); Console.WriteLine("a*b= " + produsScalarVector(a, b)); Console.WriteLine("||a||= " + norma(a)); Console.WriteLine("||b||= " + norma(b)); }