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* Fibonacci: Initial commit. Working. * Fibonacci: Address Nick's comments. Added unchecked factorial. * Fibonacci: Improved overflow testing * Fibonacci: Added unit tests * Fibonacci: Performance report * Fibonacci: Nick's comments - Complexity * Fibonacci: Add UT to Jamfile * Make Fibonacci and UT C++03 friendly. Add UT to Jamfile. * Fibonacci: Remove GMP dependency * 1. Added fibonacci generator with unit tests 2. Added example of reciprocal fibonacci constant * [CI SKIP] Fibonacci: First cut at documentation * Fibonacci: Finishing up changes [CI SKIP] * Fibonacci: Removing unnecessary html files * fibonacci: rename to unchecked_fibonacci * fibonacci: remove documentation Co-authored-by: Created by Ansible <madhur@dev-sng-build1.kdev>
27 lines
939 B
C++
27 lines
939 B
C++
// Copyright 2020, Madhur Chauhan
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt
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// or copy at http://www.boost.org/LICENSE_1_0.txt)
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// This is an example to calculate Reciprocal Fibonacci Constant (A079586 in the OEIS)
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// compile with flags: -std=c++11 -lmpfr
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#include <boost/math/special_functions/fibonacci.hpp>
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#include <boost/multiprecision/mpfr.hpp>
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#include <iomanip>
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#include <iostream>
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int main() {
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using Real = boost::multiprecision::mpfr_float_1000;
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boost::math::fibonacci_generator<Real> gen;
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gen.set(1); // start producing values from 1st fibonacci number
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Real ans = 0;
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const int ITR = 1000;
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for (int i = 0; i < ITR; ++i) {
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ans += 1.0 / gen();
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}
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std::cout << std::setprecision(1000) << "Reciprocal fibonacci constant after "
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<< ITR << " iterations is: " << ans << std::endl;
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} |