PROPORTIONAL

, relating to Proportion. As, Proportional Compasses, Parts, Scales, Spirals, &c. See the several terms.

Proportional Compasses, are compasses with two pair of opposite legs, like a St. Andrew's cross, by which any space is enlarged or diminished in any proportion.

Proportional Part, is a part of some number that is analogous to some other part or number; such as the Proportional parts in the logarithms, and other tables.

Proportional Scales, called also Logarithmic Scales, are the logarithms, or artificial numbers, placed on lines, for the ease and advantage of multiplying and dividing &c, by means of compasses, or of sliding rulers. These are in effect so many lines of numbers, as they are called by Gunter, but made single, double, triple, or quadruple; beyond which they seldom go. See GUNTER'S Scale, Scale, &c.

Proportional Spiral. See Spiral.

previous entry · index · next entry

ABCDEFGHKLMNOPQRSTWXYZABCEGLMN

Entry taken from A Mathematical and Philosophical Dictionary, by Charles Hutton, 1796.

This text has been generated using commercial OCR software, and there are still many problems; it is slowly getting better over time. Please don't reuse the content (e.g. do not post to wikipedia) without asking liam at holoweb dot net first (mention the colour of your socks in the mail), because I am still working on fixing errors. Thanks!

previous entry · index · next entry

PROJECTILES
PROJECTION
PROLATE
PROMONTORY
PROPORTION
* PROPORTIONAL
PROPORTIONALITY
PROPORTIONALS
PROPOSITION
PROSTHAPHERESIS
PROTRACTING