Gunawan HBudhi, SetyaMashadiGemawati, Sri2016-02-172016-02-172016-02-17wahyu sari yenihttp://doiserbia.nb.rs/article.aspx?id=0353-88930516048G#.VsPpxLR96Whhttp://repository.unri.ac.id/xmlui/handle/123456789/7929Given a linearly independent set of n vectors in a normed space, we are interested in computing the “volume” of the n-dimensional parallelepiped spanned by them. In `p (1 p < 1), we can use the known semi-inner product and obtain, in general, n! ways of doing it, depending on the order of the vectors. We show, however, that all resulting “volumes” satisfy one common inequality.enn-dimensional parallelepipedssemi-inner productsrthogonal projection in normed spacesn-normslp spacesUR-Scientific Work Lecturer