inv_fft2() [1/2]

template<typename M , require_eigen_dense_dynamic_vt< is_complex, M > * = nullptr, require_not_var_t< base_type_t< value_type_t< M > > > * = nullptr>

Eigen::Matrix< scalar_type_t< M >, -1, -1 > stan::math::inv_fft2 ( const M &  y )

inline

Return the two-dimensional inverse discrete Fourier transform of the specified complex matrix.

The 2D inverse discrete Fourier transform first runs the 1D inverse Fourier transform on the columns, and then on the resulting rows. The composition of the FFT and inverse FFT (or vice-versa) is the identity.

Template Parameters

M	type of complex matrix argument

Parameters

[in]

y

matrix to inverse trnasform

Returns

inverse discrete 2D Fourier transform of y

Definition at line 109 of file fft.hpp.