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style: format code (#4212)

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close #4204
This commit is contained in:
acbin
2023-06-09 18:52:05 +08:00
committed by GitHub
parent ad03086f54
commit 00282efd8b
521 changed files with 5233 additions and 7309 deletions
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11
src/main/java/com/thealgorithms/maths/ConvolutionFFT.java
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@ -43,14 +43,13 @@ public class ConvolutionFFT {
* @return The convolved signal.
*/
public static ArrayList<FFT.Complex> convolutionFFT(
ArrayList<FFT.Complex> a,
ArrayList<FFT.Complex> b
) {
ArrayList<FFT.Complex> a, ArrayList<FFT.Complex> b) {
int convolvedSize = a.size() + b.size() - 1; // The size of the convolved signal
padding(a, convolvedSize); // Zero padding both signals
padding(b, convolvedSize);
/* Find the FFTs of both signals (Note that the size of the FFTs will be bigger than the convolvedSize because of the extra zero padding in FFT algorithm) */
/* Find the FFTs of both signals (Note that the size of the FFTs will be bigger than the
* convolvedSize because of the extra zero padding in FFT algorithm) */
FFT.fft(a, false);
FFT.fft(b, false);
ArrayList<FFT.Complex> convolved = new ArrayList<>();
@ -59,7 +58,9 @@ public class ConvolutionFFT {
convolved.add(a.get(i).multiply(b.get(i))); // FFT(a)*FFT(b)
}
FFT.fft(convolved, true); // IFFT
convolved.subList(convolvedSize, convolved.size()).clear(); // Remove the remaining zeros after the convolvedSize. These extra zeros came from
convolved.subList(convolvedSize, convolved.size())
.clear(); // Remove the remaining zeros after the convolvedSize. These extra zeros came
// from
// paddingPowerOfTwo() method inside the fft() method.
return convolved;