trigonometry
n . 三角法
三角法
trigonometry 三角法
trigonometry n 1 :
the mathematics of triangles and trigonometric functions [
synonym : {
trigonometry }, {
trig }]
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 ]
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 ]
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
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Trigonometry - Wikipedia Trigonometry - Khan Academy Trigonometry - What is Trigonometry? Formulas, Table, Examples - Cuemath Trigonometry - Math. net