fftw

function for determining FFT algorithm.

📝 Syntax

• m = fftw('planner')

• fftw('planner', m)

• w = fftw('dwisdom')

• fftw('dwisdom', w)

• w = fftw('swisdom')

• fftw('swisdom', w)

📥 Input argument

• m - method for setting transform parameters: 'estimate', 'measure', 'patient', 'exhaustive', or 'hybrid'.

• w - a string: wisdom data.

📤 Output argument

• m - method: 'estimate', 'measure', 'patient', 'exhaustive', or 'hybrid'.

• w - a string: wisdom data.

📄 Description

The default method is 'estimate'.

💡 Example

w = fftw('dwisdom')
M = rand(1000);
tic; fft(M); toc
fftw('dwisdom', w)
tic; fft(M); toc

🔗 See also

fft, ifft.

🕔 History

Version	📄 Description
1.0.0	initial version