1
2 #ifndef __NR_H__
3 #define __NR_H__
4
5
6 /*
7 * Utility functions from Numerical Recipes
8 */
9
10 extern int nrerror_set;
11 extern float sqrarg;
12 extern int iminarg1,iminarg2;
13 extern int imaxarg1,imaxarg2;
14 extern long lminarg1,lminarg2;
15 extern long lmaxarg1,lmaxarg2;
16 extern float minarg1,minarg2;
17 extern float maxarg1,maxarg2;
18 extern double dminarg1,dminarg2;
19 extern double dmaxarg1,dmaxarg2;
20 extern double dsqrarg;
21
22
23 #define SQR(a) ((sqrarg=(a)) == 0.0 ? 0.0 : sqrarg*sqrarg)
24
25 #define DSQR(a) ((dsqrarg=(a)) == 0.0 ? 0.0 : dsqrarg*dsqrarg)
26
27 #define DMAX(a,b) (dmaxarg1=(a),dmaxarg2=(b),(dmaxarg1) > (dmaxarg2) ?\
28 (dmaxarg1) : (dmaxarg2))
29
30 #define DMIN(a,b) (dminarg1=(a),dminarg2=(b),(dminarg1) < (dminarg2) ?\
31 (dminarg1) : (dminarg2))
32
33 #define FMAX(a,b) (maxarg1=(a),maxarg2=(b),(maxarg1) > (maxarg2) ?\
34 (maxarg1) : (maxarg2))
35
36 #define FMIN(a,b) (minarg1=(a),minarg2=(b),(minarg1) < (minarg2) ?\
37 (minarg1) : (minarg2))
38
39 #define LMAX(a,b) (lmaxarg1=(a),lmaxarg2=(b),(lmaxarg1) > (lmaxarg2) ?\
40 (lmaxarg1) : (lmaxarg2))
41
42 #define LMIN(a,b) (lminarg1=(a),lminarg2=(b),(lminarg1) < (lminarg2) ?\
43 (lminarg1) : (lminarg2))
44
45 #define IMAX(a,b) (imaxarg1=(a),imaxarg2=(b),(imaxarg1) > (imaxarg2) ?\
46 (imaxarg1) : (imaxarg2))
47
48 #define IMIN(a,b) (iminarg1=(a),iminarg2=(b),(iminarg1) < (iminarg2) ?\
49 (iminarg1) : (iminarg2))
50
51 #define SIGN(a,b) ((b) >= 0.0 ? fabs(a) : -fabs(a))
52
53
54 void nrerror(char error_text[]);
55 float *vector(long nl, long nh);
56 int *ivector(long nl, long nh);
57 unsigned char *cvector(long nl, long nh);
58 unsigned long *lvector(long nl, long nh);
59 double *dvector(long nl, long nh);
60 float **matrix(long nrl, long nrh, long ncl, long nch);
61 double **dmatrix(long nrl, long nrh, long ncl, long nch);
62 int **imatrix(long nrl, long nrh, long ncl, long nch);
63 float **submatrix(float **a, long oldrl, long oldrh, long oldcl, long oldch,
64 long newrl, long newcl);
65 float **convert_matrix(float *a, long nrl, long nrh, long ncl, long nch);
66 float ***f3tensor(long nrl, long nrh, long ncl, long nch, long ndl, long ndh);
67 void free_vector(float *v, long nl, long nh);
68 void free_ivector(int *v, long nl, long nh);
69 void free_cvector(unsigned char *v, long nl, long nh);
70 void free_lvector(unsigned long *v, long nl, long nh);
71 void free_dvector(double *v, long nl, long nh);
72 void free_matrix(float **m, long nrl, long nrh, long ncl, long nch);
73 void free_dmatrix(double **m, long nrl, long nrh, long ncl, long nch);
74 void free_imatrix(int **m, long nrl, long nrh, long ncl, long nch);
75 void free_submatrix(float **b, long nrl, long nrh, long ncl, long nch);
76 void free_convert_matrix(float **b, long nrl, long nrh, long ncl, long nch);
77 void free_f3tensor(float ***t, long nrl, long nrh, long ncl, long nch,
78 long ndl, long ndh);
79
80
81
82 /* fourier.c */
83 void realft(float data[], unsigned long n, int isign);
84 void twofft(float data1[], float data2[], float fft1[], float fft2[], unsigned long n);
85 void four1(float data[], unsigned long nn, int isign);
86 void correl(float data1[], float data2[], unsigned long n, float ans[]);
87
88 /* mnewt.c */
89 void ludcmp(float **a, int n, int *indx, float *d);
90 void lubksb(float **a, int n, int *indx, float b[]);
91 float rtnewt(void (*funcd)(float, float *, float *), float x1, float x2,
92 float xacc);
93 float rtsafe(void (*funcd)(float, float *, float *), float x1, float x2,
94 float xacc);
95 typedef void (* mnewt_func) (float *x,int n,float *fvec,float **fjac);
96 void mnewt(int ntrial, float x[], int n, float tolx, float tolf, mnewt_func func);
97
98 /* svdcmp.c */
99 float pythag(float a, float b);
100 void svdcmp(float **a, int m, int n, float w[], float **v, float *rv1);
101 void svbksb(float **u, float w[], float **v, int m, int n, float b[], float x[],
102 float *tmp);
103 void compute_h(float **a, float **u, float w[], float **v, int m, int n, float **h,
104 float **tmp_nm);
105
106 /* spline.c */
107 void spline(float x[], float y[], int n, float yp1, float ypn, float y2[]);
108 void splint(float xa[], float ya[], float y2a[], int n, float x, float *y);
109
110
111 #endif
112
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