Trigonometric function

1. Sablon:Matematika trigonometrikus függvény

Function	Abbreviation	Description	Identities (using radians)
sine	sin	Sablon:Sfrac	$\sin \theta =\cos (\frac{\pi }{2}-\theta )=\frac{1}{\csc \theta }$
cosine	cos	Sablon:Sfrac	$\cos \theta =\sin (\frac{\pi }{2}-\theta )=\frac{1}{\sec \theta }$
tangent	tan (or tg)	Sablon:Sfrac	$\tan \theta =\frac{\sin \theta }{\cos \theta }=\cot (\frac{\pi }{2}-\theta )=\frac{1}{\cot \theta }$
cotangent	cot (or cotan or cotg or ctg or ctn)	Sablon:Sfrac	$\cot \theta =\frac{\cos \theta }{\sin \theta }=\tan (\frac{\pi }{2}-\theta )=\frac{1}{\tan \theta }$
secant	sec	Sablon:Sfrac	$\sec \theta =\csc (\frac{\pi }{2}-\theta )=\frac{1}{\cos \theta }$
cosecant	csc (or cosec)	Sablon:Sfrac	$\csc \theta =\sec (\frac{\pi }{2}-\theta )=\frac{1}{\sin \theta }$