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 wave - Wikipedia