constants.hpp

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// Copyright 2024 Sebastian Eibl
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
#pragma once
 
#include <numbers>
 
#include "datatypes.hpp"
 
namespace mrmd
{
constexpr static int DIMENSIONS = 3;
 
constexpr auto pi = std::numbers::pi_v<real_t>;
constexpr auto inv_sqrtpi = std::numbers::inv_sqrtpi_v<real_t>;
 
namespace toSI
{
constexpr real_t temperature = 1e3_r / (6.02214129_r * 1.380649_r);
constexpr real_t energy = 1e3_r / 6.02214129e23_r;
}  // namespace toSI
}  // namespace mrmd