Trigonometric Functions
Sin( ) Cos( ) Tan( )
Csc( ) Sec( ) Cot( )

Y = Sin(X)
Sine.
Domain: -Infinity < X < +Infinity
Range: -1 <= Y <= +1

Y = Cos(X)
Cosine.
Domain: -Infinity < X < +Infinity
Range: -1 <= Y <= +1

Y = Tan(X)
Tangent.
Definition: Tan(X) = Sin(X) / Cos(X); where Cos(X) not equal to 0
Domain: All real numbers except odd integer multiples of (Pi/2).
Range: -Infinity < Y < +Infinity

Y = Csc(X) Cosecant.
Definition: Csc(X) = 1/Sin(X); where Sin(X) not equal to 0
Domain: X not equal 0, (+ or - Pi), (+ or - 2Pi), …
Range: Y <= -1 and Y >= +1

Y = Sec(X)
Secant.
Definition: Sec(X) = 1/Cos(X); where Cos(X) not equal to 0
Domain: X not equal to (+ or - Pi/2), (+ or - 3Pi/2), …
Range: Y <= -1 and Y >= +1

Y = Cot(X)
Cotangent.
Definition: Cot(x) = Cos(X) / Sin(X); where Sin(X) not equal to 0
Domain: X not equal 0, (+ or - Pi), (+ or - 2Pi), …
Range: -Infinity < Y < +Infinity