45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
/*
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LA: linear algebra C++ interface library
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Copyright (C) 2024 Jiri Pittner <jiri.pittner@jh-inst.cas.cz> or <jiri@pittnerovi.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _MISCFUNC_H
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#define _MISCFUNC_H
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namespace LA {
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const double c_euler= 0.5772156649015328606065120900824024310422;
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extern unsigned long long factorial(const int n);
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extern double factorialln(const int n);
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extern unsigned long long binom(int n, int k);
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extern unsigned long long longpow(unsigned long long x, int i);
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extern double zeta(double x);
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extern double gamma(double x);
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extern double gammln(double x);
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extern double bernoulli_number(int n);
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extern unsigned long long simplicial(int d, int n); //simplicial numbers in a precomputed efficient way
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extern int inverse_simplicial(int d, unsigned long long s);
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}//namespace
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#endif
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