Plane trigonometry, by S.L. Loney.

PREFACE.

THE following work will, I hope, be found to be a
fairly complete elementary text-book on Plane Trigonometry, suitable for Schools and the Pass and Junior
Honour classes of Universities. In the higher portion of
the book I have endeavoured to present to the student,
as simply as possible, the modern treatment of complex
quantities, and I hope it will be found that he will have
little to unlearn when he commences to read treatises of
a more difficult character.
As Trigonometry consists largely of formulae and the
applications thereof, I have prefixed (on pages x to xvi) a
list of the principal formulae which the student should
commit to memory. These more important formulae
are distinguished in the text by the use of thick type.
Other formulae are subsidiary and of less importance.
The number of examples is very large. A selection
only should be solved by the student on a first reading.
b2