FNFT
fnft__kdv_discretization.h
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1 /*
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16  * Contributors:
17  * Sander Wahls (TU Delft) 2017-2018.
18  * Shrinivas Chimmalgi (TU Delft) 2017-2019.
19  * Peter J. Prins (TU Delft) 2018.
20  */
21 
28 #ifndef FNFT__KDV_DISCRETIZATION_H
29 #define FNFT__KDV_DISCRETIZATION_H
30 
33 
34 
49  discretization);
50 
66 
67 
84  fnft__akns_discretization_t * const akns_discretization);
85 
101 
102 
123  FNFT_COMPLEX * const vals, fnft_kdv_discretization_t discretization);
124 
145  FNFT_COMPLEX * const vals, fnft_kdv_discretization_t discretization);
146 
147 
148 #ifdef FNFT_ENABLE_SHORT_NAMES
149 #define kdv_discretization_degree(...) fnft__kdv_discretization_degree(__VA_ARGS__)
150 #define kdv_discretization_boundary_coeff(...) fnft__kdv_discretization_boundary_coeff(__VA_ARGS__)
151 #define kdv_discretization_to_akns_discretization(...) fnft__kdv_discretization_to_akns_discretization(__VA_ARGS__)
152 #define kdv_discretization_upsampling_factor(...) fnft__kdv_discretization_upsampling_factor(__VA_ARGS__)
153 #define kdv_discretization_lambda_to_z(...) fnft__kdv_discretization_lambda_to_z(__VA_ARGS__)
154 #define kdv_discretization_z_to_lambda(...) fnft__kdv_discretization_z_to_lambda(__VA_ARGS__)
155 #endif
156 
157 #endif
fnft_kdv_discretization_t.h
Lists discretizations for the Korteweg-de Vries equation.
FNFT_INT
int32_t FNFT_INT
Definition: fnft_numtypes.h:56
FNFT_UINT
size_t FNFT_UINT
Definition: fnft_numtypes.h:62
fnft_kdv_discretization_t
fnft_kdv_discretization_t
Enum that specifies discretizations used to compute nonlinear Fourier transforms for the Korteweg-de ...
Definition: fnft_kdv_discretization_t.h:96
fnft__kdv_discretization_upsampling_factor
FNFT_UINT fnft__kdv_discretization_upsampling_factor(fnft_kdv_discretization_t discretization)
This routine returns the scaling for effective number of samples based on the discretization.
fnft__akns_discretization.h
Properties of the discretizations for the Korteweg-de Vries equation.
FNFT_COMPLEX
double complex FNFT_COMPLEX
Definition: fnft_numtypes.h:47
fnft__kdv_discretization_lambda_to_z
FNFT_INT fnft__kdv_discretization_lambda_to_z(const FNFT_UINT n, const FNFT_REAL eps_t, FNFT_COMPLEX *const vals, fnft_kdv_discretization_t discretization)
This routine maps from continuous-time domain to in the discrete-time domain based on the discretiz...
fnft__kdv_discretization_z_to_lambda
FNFT_INT fnft__kdv_discretization_z_to_lambda(const FNFT_UINT n, const FNFT_REAL eps_t, FNFT_COMPLEX *const vals, fnft_kdv_discretization_t discretization)
This routine maps from the discrete-time domain to in the continuous-time domain based on the discr...
FNFT_REAL
double FNFT_REAL
Definition: fnft_numtypes.h:40
fnft__akns_discretization_t
fnft__akns_discretization_t
Enum that specifies discretizations used to compute nonlinear Fourier transforms of systems that fit ...
Definition: fnft__akns_discretization_t.h:103
fnft__kdv_discretization_degree
FNFT_UINT fnft__kdv_discretization_degree(fnft_kdv_discretization_t discretization)
This routine returns the max degree of the polynomials in a single scattering matrix or zero if the ...
fnft__kdv_discretization_to_akns_discretization
FNFT_INT fnft__kdv_discretization_to_akns_discretization(fnft_kdv_discretization_t kdv_discretization, fnft__akns_discretization_t *const akns_discretization)
This routine returns akns discretization related to the given kdv discretization.
fnft__kdv_discretization_boundary_coeff
FNFT_REAL fnft__kdv_discretization_boundary_coeff(fnft_kdv_discretization_t discretization)
This routine returns the boundary coefficient based on the discretization.