Lines Matching refs:k
106 u32 k; in MATHi_FFT() local
133 for (k = 2; k < div; k += 2) in MATHi_FFT()
135 if (k != div / 2) in MATHi_FFT()
150 for (i = k; i < n2; i += di) in MATHi_FFT()
180 for (i = k; i < n2; i += di) in MATHi_FFT()
258 u32 k; in MATHi_IFFT() local
285 for (k = 2; k < div; k += 2) in MATHi_IFFT()
287 if (k != div / 2) in MATHi_IFFT()
298 for (i = k; i < n2; i += di) in MATHi_IFFT()
328 for (i = k; i < n2; i += di) in MATHi_IFFT()
390 u32 k;
415 for (k = 2; k < div; k += 2)
428 u32 ik = i + k;
516 u32 i, j, k; in MATH_FFTReal() local
522 for (k = 1; k < nq; k++) in MATH_FFTReal()
527 i = k * 2; in MATH_FFTReal()
530 wr = sinTable[k + nq]; // sin(x+(pi/2)) == cos(x) in MATH_FFTReal()
531 wi = sinTable[k]; in MATH_FFTReal()
587 u32 i, j, k; in MATH_IFFTReal() local
591 for (k = 1; k < nq; k++) in MATH_IFFTReal()
596 i = k * 2; in MATH_IFFTReal()
599 wr = sinTable[k + nq]; // cos(-x) == sin(x+(pi/2)) in MATH_IFFTReal()
600 wi = -sinTable[k]; // sin(-x) == -sin(x) in MATH_IFFTReal()
660 u32 i, j, k; in MATHi_DFT() local
670 for(k=0;k<n;k++) in MATHi_DFT()
672 rad = j * k; in MATHi_DFT()
690 tr = FX_Mul(data[k * 2], wr) + FX_Mul(data[k * 2 + 1], wi); in MATHi_DFT()
691 ti = FX_Mul(data[k * 2 + 1], wr) - FX_Mul(data[k * 2], wi); in MATHi_DFT()