Key Equations

Sinusoidal functions

\begin{array}{l} f (x) = A \sin (B x - C) + D \\ f (x) = A \cos (B x - C) + D \end{array}

Shifted, compressed, and/or stretched tangent function	$y = A \tan (B x - C) + D$
Shifted, compressed, and/or stretched secant function	$y = A \sec (B x - C) + D$
Shifted, compressed, and/or stretched cosecant function	$y = A \csc (B x - C) + D$
Shifted, compressed, and/or stretched cotangent function	$y = A \cot (B x - C) + D$