Z-transform involving the unit step function and cosine |
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LaTeX Code:
\cos (\omega _o n + \theta )u(n) \Leftrightarrow \frac{{z[z\cos \theta - \cos (\omega _o - \theta )]}}{{\left( {z^2 - 2z\cos \omega _o + 1} \right)}},\left| z \right| > 1
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Pasting the above "text" into MathType 5.0 will enter the above equation and make it possible to edit, save, and use in applications such as MS Word.
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