using DCT for taking spectral derivative

조회 수: 2 (최근 30일)
Bo
Bo 2014년 6월 24일
Hi, I have use FFT in matlab to take a function's derivative. Since I always work with real data, can I use DCT to do the same thing (because it is supposed to be faster)?
I found an old thread:
http://www.mathworks.com/matlabcentral/newsreader/view_thread/42166
But there hasn't been any answers yet.
Could anyone help? Thanks!
Bo

이 질문에 답변하려면 로그인하십시오.

답변 (0개)

카테고리

Help Center 및 File Exchange에서 Fourier Analysis and Filtering에 대해 자세히 알아보기

태그

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by