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Anything shaped more or less like a mathematical cone; as, a volcanic cone, a collection of scoriæ around the crater of a volcano, usually heaped up in a conical form. Now had Night measured with her shadowy cone Half way up hill this vast sublunar vault. Milton.

s simultaneously and having reciprocal properties; -- frequently used in pure and applied mathematics with reference to two quantities, points, lines, axes, curves, etc. Conjugate axis of a hyperbola (Math.), the line through the center of the curve, perpendicular to the line through the two foci. -- Conjugate diamete…

Any part of a mathematical instrument that moves or slides backward and forward upon another part.

The amount of degree of bending of a mathematical curve, or the tendency at any point to depart from a tangent drawn to the curve at that point. Aberrancy of curvature (Geom.), the deviation of a curve from a curcular form. -Absolute curvature. See under Absolute. -- Angle of curvature (Geom.), one that expresses the…

A division, space, or interval, marked on a mathematical or other instrument, as on a thermometer.

en two vertical lines. The theory of determinants forms a very important branch of modern mathematics.

Any simple drawing made for mathematical or scientific purposes, or to assist a verbal explanation which refers to it; a mechanical drawing, as distinguished from an artistical one. Indicator diagram. (Steam Engine) See Indicator card, under indicator

scriptive drawing; especially, the art or science of drawing by mechanical appliances and mathematical rule.

A small interval, less than any in actual practice, but used in the mathematical calculation of intervals.

maginary dimension. Space of five or six, or more dimensions is also sometimes assumed in mathematics.

A degree of the first class both in classics and mathematics.

Producing mathematically perfect harmony or concord; sweetly or perfectly harmonious.

Pertaining Euler, a German mathematician of the 18th century. Eulerian integrals, certain definite integrals whose properties were first investigated by Euler.

s, laudable actions, or acquirements; to be distinguished by superiority; as, to excel in mathematics, or classics. Unstable as water, thou shalt not excel. Gen. xlix. 4. Then peers grew proud in horsemanship t' excel. Pope.

The enlargement of the ship mathematically from a model or drawing to the full or building size, in the process of construction. Ham. Nav. Encyc.

Origination by some process, mathematical, chemical, or vital; production; formation; as, the generation of sounds, of gases, of curves, etc.

That which generates; the point, or the mathematical magnitude, which, by its motion, generates another magnitude, as a line, surface, or solid; -- called also describent.

That branch of applied mathematics which determines, by means of observations and measurements, the figures and areas of large portions of the earth's surface, or the general figure and dimenshions of the earth; or that branch of surveying in which the curvature of the earth is taken into account, as in the surveys of…

A treatise on this science. Astronomical, or Mathematical, geography treats of the earth as a planet, of its shape, its size, its lines of latitude and longitude, its zones, and the phenomena due to to the earth's diurnal and annual motions. -- Physical geography treats of the conformation of the earth's surface, of t…

One skilled in geometry; a geometrician; a mathematician. I. Watts.