1. the mathematics of triangles and trigonometric functions;

[syn:

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Mathematics \Math`e*mat"ics\, n. [F. math['e]matiques, pl., L. mathematica, sing., Gr. ? (sc. ?) science. See Mathematic, and -ics.] That science, or class of sciences, which treats of the exact relations existing between quantities or magnitudes, and of the methods by which, in accordance with these relations, quantities sought are deducible from other quantities known or supposed; the science of spatial and quantitative relations. [1913 Webster] Note: Mathematics embraces three departments, namely: 1. Arithmetic. 2. Geometry, including Trigonometry and Conic Sections. 3. Analysis, in which letters are used, including Algebra, Analytical Geometry, and Calculus. Each of these divisions is divided into pure or abstract, which considers magnitude or quantity abstractly, without relation to matter; and mixed or applied, which treats of magnitude as subsisting in material bodies, and is consequently interwoven with physical considerations. [1913 Webster]The Collaborative International Dictionary of English v.0.48:

Trigonometry \Trig`o*nom"e*try\, n.; pl. -tries. [Gr. ? a triangle + -metry: cf. F. trigonom['e]trie. See Trigon.] 1. That branch of mathematics which treats of the relations of the sides and angles of triangles, which the methods of deducing from certain given parts other required parts, and also of the general relations which exist between the trigonometrical functions of arcs or angles. [1913 Webster] 2. A treatise in this science. [1913 Webster] Analytical trigonometry, that branch of trigonometry which treats of the relations and properties of the trigonometrical functions. Plane trigonometry, and Spherical trigonometry, those branches of trigonometry in which its principles are applied to plane triangles and spherical triangles respectively. [1913 Webster]WordNet (r) 3.0 (2006):

trigonometry n 1: the mathematics of triangles and trigonometric functions [syn: trigonometry, trig]Moby Thesaurus II by Grady Ward, 1.0:

61 Moby Thesaurus words for "trigonometry": Boolean algebra, Euclidean geometry, Fourier analysis, Lagrangian function, algebra, algebraic geometry, analysis, analytic geometry, arithmetic, associative algebra, binary arithmetic, calculus, circle geometry, descriptive geometry, differential calculus, division algebra, equivalent algebras, game theory, geodesy, geometry, goniometry, graphic algebra, group theory, higher algebra, higher arithmetic, hyperbolic geometry, infinitesimal calculus, integral calculus, intuitional geometry, invariant subalgebra, inverse geometry, line geometry, linear algebra, mathematical physics, matrix algebra, metageometry, modular arithmetic, n-tuple linear algebra, natural geometry, nilpotent algebra, number theory, plane trigonometry, political arithmetic, projective geometry, proper subalgebra, quaternian algebra, reducible algebra, set theory, simple algebra, solid geometry, speculative geometry, spherical trigonometry, statistics, subalgebra, systems analysis, topology, trig, universal algebra, universal geometry, vector algebra, zero algebra