See soorce fer Sine

{{Infobox mathematics function
| name = Sine
| image = Sine one period.svg
| parity=odd |domain=(−{{lower|0.2em|{{resize|130%|∞}}}},{{lower|0.2em|{{resize|130%|∞}}}})&thinsp;{{smallsup|a}} |codomain=[−1,1]&thinsp;{{smallsup|a}} |period=2{{pi}}
| zero=0 |plusinf= |minusinf= |max=((2''k'' + ½){{pi}} 1)&thinsp;{{smallsup|b}} |min=((2''k'' − ½){{pi}} −1)
| vr1= |f1= <!--......--> |vr5= |f5=
| asymptote= |root=''k''{{pi}} |critical=''k''{{pi}} − {{sfrac|{{pi}}|2}} |inflection=''k''{{pi}} |fixed=0
| notes = {{ublist |{{sup|a}} For [[Real nummer|real]] nummers. |{{sup|b}} Variable ''k'' is an [[integer]].}}
}}
[[File:Trigono sine en2.svg|right|thumb|<math>\sin \alpha = \frac {\textrm{opposite}} {\textrm{hypotenuse}} </math><br/>For the angle α, the sine function gies the ratio o the lenth o the opposite side tae the lenth o the hypotenuse.]]
'''Sine''', in [[mathematics]], is a [[trigonometric function]] o an [[angle]].

[[Category:Trigonometric functions]]