tangent 音标拼音: [t'ændʒənt]
a . 接触的,切线的,相切的,离题的
n . 切线,正切
接触的,切线的,相切的,离题的切线,正切
tangent 正
tangent 正切 切线
tangent n 1 :
a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point 2 :
ratio of the opposite to the adjacent side of a right -
angled triangle [
synonym : {
tangent }, {
tan }]
Tangent \
Tan "
gent \,
a . [
L .
tangens , -
entis ,
p .
pr .]
Touching ;
touching at a single point ;
specifically (
Geom .)
meeting a curve or surface at a point and having at that point the same direction as the curve or surface ; --
said of a straight line ,
curve ,
or surface ;
as ,
a line tangent to a curve ;
a curve tangent to a surface ;
tangent surfaces .
[
1913 Webster ]
{
Tangent plane } (
Geom .),
a plane which touches a surface in a point or line .
{
Tangent scale } (
Gun .),
a kind of breech sight for a cannon .
{
Tangent screw } (
Mach .),
an endless screw ;
a worm .
[
1913 Webster ]
[
1913 Webster ]
Tangent \
Tan "
gent \,
n . [
L .
tangens , -
entis ,
p .
pr .
of tangere to touch ;
akin to Gr . ?
having seized :
cf .
F .
tangente .
Cf .
{
Attain }, {
Contaminate }, {
Contingent }, {
Entire }, {
Tact },
{
Taste }, {
Tax },
v .
t .] (
Geom .)
A tangent line curve ,
or surface ;
specifically ,
that portion of the straight line tangent to a curve that is between the point of tangency and a given line ,
the given line being ,
for example ,
the axis of abscissas ,
or a radius of a circle produced .
See {
Trigonometrical function },
under {
Function }.
[
1913 Webster ]
{
Artificial tangent },
or {
Logarithmic tangent },
the logarithm of the natural tangent of an arc .
{
Natural tangent },
a decimal expressing the length of the tangent of an arc ,
the radius being reckoned unity .
{
Tangent galvanometer } (
Elec .),
a form of galvanometer having a circular coil and a short needle ,
in which the tangent of the angle of deflection of the needle is proportional to the strength of the current .
{
Tangent of an angle },
the natural tangent of the arc subtending or measuring the angle .
{
Tangent of an arc },
a right line ,
as ta ,
touching the arc of a circle at one extremity a ,
and terminated by a line ct ,
passing from the center through the other extremity o .
[
1913 Webster ]
58 Moby Thesaurus words for "
tangent ":
abutter ,
adjoiner ,
air line ,
approach ,
asymptote ,
axis ,
beeline ,
borderer ,
bottleneck ,
bystander ,
chord ,
collision course ,
concentralization ,
concentration ,
concourse ,
concurrence ,
confluence ,
conflux ,
congress ,
convergence ,
converging ,
crossing ,
diagonal ,
diameter ,
direct line ,
directrix ,
edge ,
focalization ,
focus ,
funnel ,
great -
circle course ,
hub ,
immediate neighbor ,
looker -
on ,
meeting ,
mutual approach ,
narrowing gap ,
neighbor ,
neighborer ,
normal ,
onlooker ,
perpendicular ,
radius ,
radius vector ,
right line ,
secant ,
segment ,
shortcut ,
side ,
spokes ,
straight ,
straight course ,
straight line ,
straight stretch ,
straightaway ,
streamline ,
transversal ,
vector
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Sine, Cosine and Tangent - Math is Fun Tangent - Wikipedia TANGENT Definition Meaning - Merriam-Webster TANGENT | English meaning - Cambridge Dictionary The Tangent Function – Mathematical Mysteries