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nf_Legendre.h
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1 /*
2 # <<BEGIN-copyright>>
3 # <<END-copyright>>
4 */
5 
6 #ifndef nf_Legendre_h_included
7 #define nf_Legendre_h_included
8 
9 #include <nf_utilities.h>
10 #include <ptwXY.h>
11 
12 #if defined __cplusplus
13  extern "C" {
14  namespace GIDI {
15 #endif
16 
17 #define nf_Legendre_minMaxOrder 4
18 #define nf_Legendre_maxMaxOrder 64
19 #define nf_Legendre_sizeIncrement 8
20 
21 typedef struct nf_Legendre_s nf_Legendre;
22 
23 struct nf_Legendre_s {
24  int maxOrder;
25  int allocated; /* Will never be less than nf_Legendre_minMaxOrder. */
26  double *Cls;
27 };
28 
29 typedef nfu_status (*nf_Legendre_GaussianQuadrature_callback)( double x, double *y, void *argList );
30 
31 /*
32 * Methods in nf_Legendre.c
33 */
34 nf_Legendre *nf_Legendre_new( int initialSize, int maxOrder, double *Cls, nfu_status *status );
35 nfu_status nf_Legendre_setup( nf_Legendre *nfL, int initialSize, int maxOrder );
36 nfu_status nf_Legendre_release( nf_Legendre *nfL );
37 nf_Legendre *nf_Legendre_free( nf_Legendre *nfL );
38 nf_Legendre *nf_Legendre_clone( nf_Legendre *nfL, nfu_status *status );
39 nfu_status nf_Legendre_reallocateCls( nf_Legendre *Legendre, int size, int forceSmallerResize );
40 int nf_Legendre_maxOrder( nf_Legendre *Legendre );
41 int nf_Legendre_allocated( nf_Legendre *Legendre );
42 double nf_Legendre_getCl( nf_Legendre *Legendre, int l, nfu_status *status );
43 nfu_status nf_Legendre_setCl( nf_Legendre *Legendre, int l, double Cl );
44 nfu_status nf_Legendre_normalize( nf_Legendre *Legendre );
45 double nf_Legendre_evauluateAtMu( nf_Legendre *nfL, double mu, nfu_status *status );
46 double nf_Legendre_PofL_atMu( int l, double mu );
47 ptwXYPoints *nf_Legendre_to_ptwXY( nf_Legendre *nfL, double accuracy, int biSectionMax, int checkForRoots, nfu_status *status );
48 nf_Legendre *nf_Legendre_from_ptwXY( ptwXYPoints *ptwXY, int maxOrder, nfu_status *status );
49 
50 /*
51 * Methods in nf_Legendre_GaussianQuadrature.c
52 */
53 nfu_status nf_Legendre_GaussianQuadrature( int degree, double x1, double x2, nf_Legendre_GaussianQuadrature_callback func, void *argList, double *integral );
54 
55 #if defined __cplusplus
56  }
57  }
58 #endif
59 
60 #endif /* End of nf_Legendre_h_included. */