FWI | RTM | Build Tool library

Posting my comment as an answer to close this question—

If you’re sure you want to use an ICZT as an equivalent of IFFT, then make your dft function accept a type: String argument like your fft. When type is ifft, all you need is to flip the sign here:

WI.append(sin(-p1[i] * 2.0 * M_PI / Double(m)))

Leave it negative for forward FFT, and positive for inverse FFT (IFFT).

Here’s some Octave/Matlab code I wrote to demonstrate CZT: gist.github.com/fasiha/42a21405de92ea46f59e. The demo shows how to use czt2 to do fft. The third argument to czt2 (called w in the code) is exp(-2j * pi / Nup) for FFT. Just conjugate it to exp(+2j * pi / Nup) to get IFFT.

That’s what flipping the sign in the sin in WI does.

To check if the htacces the part that avoid pages from loading in iOS devices, please empty the htaccess. TYPO3 runs out of the box without htacces, except additional features like realURL or simulatestaticdocuments.

Empty or rename the htaccess file. Visit the project with a iOS device at the startpage, or subpages via this links: example.com?id=xx where id is the page id from the page tree from backend you want to check.

Clear caches and page and device. Important!

Work the page now? Active the htacces parts step by step to find the bad code.

Doesn't work? Well, that can be a hard thing to figure out. I recommend to deactivate all included JS and CSS files in the first step. Clear caches, on booth ends. Worked? Activate CSS and JS includes step by step.

Doesn't work? Check your TypoScript setup in the config part. Remove all params from the config.x when you are not sure what they do. Re add them step by step and test the device.

Hope it helps.