In the field of signal analysis, the DFT (DiscreteFourierTransform) is a well known term.
在信号分析领域，DFT(离散傅立叶变换)是一个常见术语。
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One of the most common digital-signal-processing techniques is the discreteFouriertransform (DFT), which breaks a signal into its component frequencies and can be represented as a matrix.
What follows is a case study of an actual application - a discreteFouriertransform (DFT) - showing the performance improvements that result when compiling with various compiler options.