This tract gives a fairly elementary account of the theory of quadratic forms with integral coefficients and variables. It assumes a knowledge of the rudiments of matrix algebra and of elementary number theory, but scarcely any analysis. It is therefore intelligible to beginners and helps to prepare them for the study of the advanced work on quadratic forms over general rings. Dr Watson works step by step from wider (and easier) to narrower relations between forms, the final goal being the study of equivalence. The important problem of representation of integers is fully discussed in the...

The gentleman yachtsman's companion-in two volumes
Towards the end of the 19th century a series of books was published by the Badminton Library of Sports and Pastimes covering a variety of leisure activities in considerable depth. Many of the volumes consisted of essays, each written by a specialist contributor, covering different aspects of the sport or pastime. Many of these authors were members of the British oligarchy and aristocracy who were well placed, by experience, knowledge and the capacity to devote time and resources to these activities, to become acknowledged experts able to...

The gentleman yachtsman's companion-in two volumes
Towards the end of the 19th century a series of books was published by the Badminton Library of Sports and Pastimes covering a variety of leisure activities in considerable depth. Many of the volumes consisted of essays, each written by a specialist contributor, covering different aspects of the sport or pastime. Many of these authors were members of the British oligarchy and aristocracy who were well placed, by experience, knowledge and the capacity to devote time and resources to these activities, to become acknowledged experts able to...