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));
}
