(In contrast a scalar quantity has magnitude only - eg, the numbers 1, 2, 3, 4...) The diagram above represents a vector. The arrow displays its direction, hence this ...

Learn about and revise vectors and how they can be can be added, subtracted and multiplied by a scalar with this Bitesize GCSE Maths Edexcel guide.

In this paper, we study the precise large deviations of sums of two-dimensional random vectors with two dependent and real-valued components. In the presence of heavy tails, we obtain some uniformly ...