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An elementary example would be a signal having only low-frequency and high-frequency components. A . filter would permit only the low frequencies to be transmitted, the high frequencies being suppressed or attenuated. The converse is true for passing the high frequencies while suppressing the low frequencies by means of a . filter.打火石 发表于 2025-3-31 07:51:55
Heiko Ohlingal basis. One differentiates between . (projected or expected) and . volatility. Implied volatility is the volatility as implied by options prices traded in the market: in the following the focus will be mainly on implied volatility and its possible applications.