Plane and solid analytic geometry, by William F. Osgood and William C. Graustein.

PREFACE vii
duction of the general equation of the second degree in space
to normal forms by translations and rotations is sketched and
illustrated by numerical examples.
The question may be asked: In so extensive a treatment of
analytic geometry should not, for example, homogeneous coordinates find a place? The authors believe that the student,
before proceeding to the elaborate methods of modern geometry,
should have a thorough knowledge both of the material and the
methods which may fairly be called elementary, and they felt
that a book which, avoiding the conciseness of some of the
current texts and the looseness of others, is clear because it is
rigorous will meet a real need.
This book is designed to be at once an introduction to the
subject and a handbook of the elements. May it serve alike
the needs of the future specialist in geometry, the analyst, the
mathematical physicist, and the engineer.
HARVARD UNIVERSITY
April, 1921