#include <itpp/base/scalfunc.h>
#include <itpp/base/vec.h>
#include <cmath>
#include <cstdlib>
Go to the source code of this file.
Namespaces | |
namespace | itpp |
Functions | |
double | tgamma (double x) |
True gamma function. | |
double | lgamma (double x) |
Lograrithm of an absolute gamma function. | |
double | cbrt (double x) |
double | asinh (double x) |
Arcus sinhyp. | |
double | acosh (double x) |
Arcus coshyp. | |
double | atanh (double x) |
Arcus tanhyp. | |
double | itpp::gamma (double x) |
Gamma function. | |
double | itpp::Qfunc (double x) |
Q-function. | |
double | itpp::erfinv (double x) |
Inverse of error function. | |
std::complex< double > | itpp::cerfc_continued_fraction (const std::complex< double > &z) |
std::complex< double > | itpp::cerf_continued_fraction (const std::complex< double > &z) |
std::complex< double > | itpp::cerf_series (const std::complex< double > &z) |
std::complex< double > | itpp::cerf_rybicki (const std::complex< double > &z) |
std::complex< double > | itpp::erf (const std::complex< double > &z) |
Error function for complex argument. | |
double | itpp::fact (int index) |
Calculates factorial coefficient for index <= 170. | |
long | itpp::mod (long k, long n) |
Calculates the modulus, i.e. the signed reminder after division. | |
long | itpp::gcd (long a, long b) |
returns the greatest common divisor (GCD) g of the elements a and b. | |
double | itpp::binom (int n, int k) |
Compute the binomial coefficient "n over k" as a float. | |
int | itpp::binom_i (int n, int k) |
Compute the binomial coefficient "n over k" as an integer. | |
double | itpp::log_binom (int n, int k) |
Compute the base 10 logarithm of the binomial coefficient "n over k". | |
std::complex< double > | itpp::round_to_zero (const std::complex< double > &x, double threshold=1e-14) |
Round each part of x smaller than threshold to zero. | |
Variables | |
int | signgam |
$Date$ $Revision$
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IT++ - C++ library of mathematical, signal processing, speech processing, and communications classes and functions
Copyright (C) 1995-2007 (see AUTHORS file for a list of contributors)
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Definition in file scalfunc.cpp.
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