sine 音标拼音: [s'ɑɪn]
n . 正弦
正弦
sine 半正弦
sine 正弦
sine 正弦
sine n 1 :
ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right -
angled triangle [
synonym : {
sine }, {
sin }]
Sine \
Sine \,
n . [
LL .
sinus a sine ,
L .
sinus bosom ,
used in translating the Ar .
jaib ,
properly ,
bosom ,
but probably read by mistake (
the consonants being the same )
for an original j [
imac ]
ba sine ,
from Skr .
j [
imac ]
va bowstring ,
chord of an arc ,
sine .] (
Trig .)
(
a )
The length of a perpendicular drawn from one extremity of an arc of a circle to the diameter drawn through the other extremity .
(
b )
The perpendicular itself .
See {
Sine of angle },
below .
[
1913 Webster ]
{
Artificial sines },
logarithms of the natural sines ,
or logarithmic sines .
{
Curve of sines }.
See {
Sinusoid }.
{
Natural sines },
the decimals expressing the values of the sines ,
the radius being unity .
{
Sine of an angle },
in a circle whose radius is unity ,
the sine of the arc that measures the angle ;
in a right -
angled triangle ,
the side opposite the given angle divided by the hypotenuse .
See {
Trigonometrical function },
under {
Function }.
{
Versed sine },
that part of the diameter between the sine and the arc .
[
1913 Webster ]
Sine \
Si "
ne \,
prep . [
L .]
Without .
[
1913 Webster ]
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Sine, Cosine, Tangent, explained and with Examples and practice . . . This page explains the sine, cosine, tangent ratio, gives on an overview of their range of values and provides many practice problems on identifying the sides that are opposite and adjacent to a given angle
Sine Functions: Angles, Graphs, and Trig Identities (Video) Sine, which is commonly abbreviated to S-I-N, is the ratio of the side opposite the angle we want to know over the hypotenuse of the right triangle Remember that the hypotenuse is the longest side and is always opposite the right angle, which is the largest angle in any right triangle