LSST Applications  21.0.0-172-gfb10e10a+18fedfabac,22.0.0+297cba6710,22.0.0+80564b0ff1,22.0.0+8d77f4f51a,22.0.0+a28f4c53b1,22.0.0+dcf3732eb2,22.0.1-1-g7d6de66+2a20fdde0d,22.0.1-1-g8e32f31+297cba6710,22.0.1-1-geca5380+7fa3b7d9b6,22.0.1-12-g44dc1dc+2a20fdde0d,22.0.1-15-g6a90155+515f58c32b,22.0.1-16-g9282f48+790f5f2caa,22.0.1-2-g92698f7+dcf3732eb2,22.0.1-2-ga9b0f51+7fa3b7d9b6,22.0.1-2-gd1925c9+bf4f0e694f,22.0.1-24-g1ad7a390+a9625a72a8,22.0.1-25-g5bf6245+3ad8ecd50b,22.0.1-25-gb120d7b+8b5510f75f,22.0.1-27-g97737f7+2a20fdde0d,22.0.1-32-gf62ce7b1+aa4237961e,22.0.1-4-g0b3f228+2a20fdde0d,22.0.1-4-g243d05b+871c1b8305,22.0.1-4-g3a563be+32dcf1063f,22.0.1-4-g44f2e3d+9e4ab0f4fa,22.0.1-42-gca6935d93+ba5e5ca3eb,22.0.1-5-g15c806e+85460ae5f3,22.0.1-5-g58711c4+611d128589,22.0.1-5-g75bb458+99c117b92f,22.0.1-6-g1c63a23+7fa3b7d9b6,22.0.1-6-g50866e6+84ff5a128b,22.0.1-6-g8d3140d+720564cf76,22.0.1-6-gd805d02+cc5644f571,22.0.1-8-ge5750ce+85460ae5f3,master-g6e05de7fdc+babf819c66,master-g99da0e417a+8d77f4f51a,w.2021.48
LSST Data Management Base Package
Chebyshev1Basis1d.h
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1 // -*- LSST-C++ -*-
2 /*
3  * Developed for the LSST Data Management System.
4  * This product includes software developed by the LSST Project
5  * (https://www.lsst.org).
6  * See the COPYRIGHT file at the top-level directory of this distribution
7  * for details of code ownership.
8  *
9  * This program is free software: you can redistribute it and/or modify
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13  *
14  * This program is distributed in the hope that it will be useful,
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16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
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20  * along with this program. If not, see <https://www.gnu.org/licenses/>.
21  */
22 #ifndef LSST_AFW_MATH_POLYNOMIALS_Chebyshev1Basis1d_h_INCLUDED
23 #define LSST_AFW_MATH_POLYNOMIALS_Chebyshev1Basis1d_h_INCLUDED
24 
28 
29 namespace lsst { namespace geom { namespace polynomials {
30 
37 public:
38 
39  static double getB0(double x) { return 1; }
40 
41  static double getB1(double x) { return x; }
42 
43  static double next(double x, std::size_t n, double current, double previous) { return 2*x*current - previous; }
44 
45 };
46 
49 
52 
53 }}} // namespace lsst::geom::polynomials
54 
55 #endif // !LSST_AFW_MATH_POLYNOMIALS_Chebyshev1Basis1d_h_INCLUDED
double x
A Recurrence for Chebyshev polynomials of the first kind.
static double next(double x, std::size_t n, double current, double previous)
A basis for 1-d series expansions defined by a recurrence relation.
A 1-d basis that transforms all input points before evaluating nested basis.
Definition: ScaledBasis1d.h:44
A base class for image defects.