for (int i=0,j=n-1; i<k; ++i,--j) { float x = i-k; float fideal = idealFilter(x); float window = (float)kw.evaluate(x); f[i] = fideal*window;
for (int i=0,j=n-1; i<k; ++i,--j) { float x = i-k; float fideal = idealFilter(x); float window = (float)kw.evaluate(x); f[i] = fideal*window;