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static int | max_i (int a, int b) |
| max
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static R | fak (int n) |
| factorial
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static R | binom (int n, int m) |
| binomial coefficient
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static R | BasisPoly (int m, int r, R xx) |
| basis polynomial for regularized kernel
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C | regkern (kernel k, R xx, int p, const R *param, R a, R b) |
| regularized kernel with K_I arbitrary and K_B smooth to zero
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static C | regkern1 (kernel k, R xx, int p, const R *param, R a, R b) |
| regularized kernel with K_I arbitrary and K_B periodized (used in 1D)
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static C | regkern3 (kernel k, R xx, int p, const R *param, R a, R b) |
| regularized kernel for even kernels with K_I even and K_B mirrored More...
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C | kubintkern (const R x, const C *Add, const int Ad, const R a) |
| linear spline interpolation in near field with even kernels More...
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static C | kubintkern1 (const R x, const C *Add, const int Ad, const R a) |
| cubic spline interpolation in near field with arbitrary kernels
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static void | quicksort (int d, int t, R *x, C *alpha, int N) |
| quicksort algorithm for source knots and associated coefficients
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static void | BuildBox (fastsum_plan *ths) |
| initialize box-based search data structures
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static C | calc_SearchBox (int d, R *y, R *x, C *alpha, int start, int end_lt, const C *Add, const int Ad, int p, R a, const kernel k, const R *param, const unsigned flags) |
| inner computation function for box-based near field correction
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static C | SearchBox (R *y, fastsum_plan *ths) |
| box-based near field correction
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static void | BuildTree (int d, int t, R *x, C *alpha, int N) |
| recursive sort of source knots dimension by dimension to get tree structure
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static C | SearchTree (const int d, const int t, const R *x, const C *alpha, const R *xmin, const R *xmax, const int N, const kernel k, const R *param, const int Ad, const C *Add, const int p, const unsigned flags) |
| fast search in tree of source knots for near field computation
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void | fastsum_init_guru (fastsum_plan *ths, int d, int N_total, int M_total, kernel k, R *param, unsigned flags, int nn, int m, int p, R eps_I, R eps_B) |
| initialization of fastsum plan More...
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void | fastsum_finalize (fastsum_plan *ths) |
| finalization of fastsum plan More...
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void | fastsum_exact (fastsum_plan *ths) |
| direct computation of sums More...
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void | fastsum_precompute (fastsum_plan *ths) |
| precomputation for fastsum More...
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void | fastsum_trafo (fastsum_plan *ths) |
| fast NFFT-based summation More...
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C | gaussian (R x, int der, const R *param) |
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C | multiquadric (R x, int der, const R *param) |
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C | inverse_multiquadric (R x, int der, const R *param) |
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C | logarithm (R x, int der, const R *param) |
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C | thinplate_spline (R x, int der, const R *param) |
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C | one_over_square (R x, int der, const R *param) |
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C | one_over_modulus (R x, int der, const R *param) |
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C | one_over_x (R x, int der, const R *param) |
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C | inverse_multiquadric3 (R x, int der, const R *param) |
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C | sinc_kernel (R x, int der, const R *param) |
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C | cosc (R x, int der, const R *param) |
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C | kcot (R x, int der, const R *param) |
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C | one_over_cube (R x, int der, const R *param) |
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