francis questions

francis answers

• Using fftw3 library for dct
• How to use fftw Guru interface
• Difference between numpy.linalg.solve and numpy.linalg.lu_solve
• FFT noise frequency remove
• PetscMalloc vs PetscMallocX
• LAPACK/LAPACKE with C++ on LINUX --- Compiling, Linking and Running?
• Fastest way of solving linear least squares
• Linking several programs with CMake
• numerical diagonalization of a unitary matrix
• How to setup FFTW with threads and different precisions?