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JLontom: C. J. CLAY AND SONS, CAMBRIDGE UNIVERSITY PRESS WAREHOUSE, AVE MARIA LANE.
263,
ARGYLE STREET.
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F. A. BROCK HAUS THE MACMILLANCOMPANY.
PREFACE.
S book
is
intended to form a companion volume to
my
edition of the treatise of Apollonius on Conic Sections
lately published.
If
it
was worth while
to
attempt to make the
work of "the great geometer" accessible to the mathematician of to-day who might not be able, in consequence of its length
and of
its
form, either to read
or,
it
in theoriginal
it,
Greek or
in a
Latin translation,
having read
to master
it
and grasp the
less of
whole scheme of the
treatise, I feel that I
owe even
an
apology for offering to the public a reproduction, on the same lines, of the extant works of perhaps the greatest mathematical
genius that the world has ever seen. Michel Chasles has drawn an instructivedistinction between
the predominant features of the geometry of Archimedes and of the geometry which we find so highly developed in Apollonius.
Their works
may be
regarded, says Chasles, as the origin
to share
is
and basis of two great inquiries which seem them the domain of geometry. Apollonius
the Geometry of
between
concerned with
Forms and
Situations, while inArchimedes
we
find the
Geometry of Measurements dealing with the quad-
rature of curvilinear plane figures and with the quadrature
and cubature of curved
surfaces, investigations
birth to the calculus of the infinite
to perfection successively
which "gave conceived and brought
and Newton."
But whether Archimedes
by Kepler, Cavalieri, Fermat, Leibniz, is viewed as thewith the limited means at his disposal, nevertheless succeeded in performing what are really integrations for the
man who,
purpose of finding the area of a parabolic segment and a
VI
PREFACE.
spiral,
the surface and volume of a sphere and a segnrent of a sphere, and the volume of any segments of the solids of revolution of the second degree, whether he is seen finding
ofparabolic segment, calculating arithmetical approximations to the value of TT, inventing a system for expressing in words any number up to that which
the centre
gravity of
a
we should
write
down with
1
followed
by 80,000
billion
ciphers, or inventing the
whole science of hydrostatics and at
the same time carrying it so far as to give a most complete investigationof the positions of rest and stability of a right
segment of a paraboloid of revolution floating in a fluid, the intelligent reader cannot fail to be struck by the remarkable
range of subjects and the mastery of treatment. And if these are such as to create genuine enthusiasm in the student of
Archimedes, the
attractive.
style
and method are no
less
irresistibly
One
featurewhich will probably most impress the
mathematician accustomed to the rapidity and directness secured
by the generality of modern methods is the deliberation with which Archimedes approaches the solution of any one of his main problems.
effects, is
Yet
this very characteristic, with its incidental
calculated to excite the
tactics
more admiration because the
some greatstrategist
method suggests the
foresees
of
who
everything not immediately conducive to the execution of his plan, masters every position
everything, eliminates
in its order,
and then suddenly (when the very elaboration of the scheme has almost obscured, in the mind of the spectator,
ultimate object) strikes the
final
its
blow.
Thus we read
which
in
is
Archimedes...
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