There are several causes of dry mouth: 1  Effects of certain medications. 2  Side effects of certain medical conditions, for example SjÃ¶gren's syndrome, and infections. 3  Side effect of certain medical treatments.  Nerve 1  damage. Dehydration.  Surgical removal of the salivary 1  glands. Lifestyle.
Euclidean geometry. Euclidean geometry is a mathematical system attributed to the Alexandrian Greek mathematician Euclid, which he described in his textbook on geometry: the Elements. Euclid's method consists in assuming a small set of intuitively appealing axioms, and deducing many other propositions (theorems) from these.
Euclidean space, euclidean topology and coordinate transformation. #1. Fernsanz. Hi, I have some doubts about the precise meaning of Euclidean space. I understand Euclidean space as the metric space [tex](\mathbb{R}^n,d)[/tex] where [tex]d[/tex] is the usual distance [tex]d(x,y)=\sqrt{\sum_i(x_i-y_i)^2}[/tex].