Fouriertransform looks at the whole signal at once, Strang says.
“傅里叶变换一次性地考察整个信号，”Strang说。
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“Fouriertransform looks at the whole signal at once, ” Strang says.
“傅里叶变换一次性地考察整个信号，”Strang说。
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MIT researchers developed one of the fastest software implementations of the Fouriertransform, a technique for splitting a signal into its constituent frequencies.