# Translations:The Nyquist frequency/3/en

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is called the *Nyquist range*, which is of total length . As we have seen, any actual rotation always appears as an apparent rotation within the Nyquist range. For example, the actual angular frequency is already in the Nyquist range, so in this case, the apparent angular frequency is the same as the actual angular frequency. Because the cyclic frequency *f* is , the cyclic Nyquist frequency is