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#pragma once
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#include "iAlgMath_global.h"
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class zxBessel;
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// 本类的目的通过单例实现对XML文件解析之后的存储
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class I_ALGMATH_EXPORT zxBesselInstance
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{
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public:
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// 获取对象，单例模式
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static zxBesselInstance* getInstance();
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// 关闭消耗
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static void release();
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private:
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zxBesselInstance();
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~zxBesselInstance();
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public:
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// 为了方便与MATLAB的统一，再次封装
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// which 为0或1，分别对应I0I1K0K1
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double besselk(int which, double x, bool* pOk = nullptr);
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double besseli(int which, double x, bool* pOk = nullptr);
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// 20220717 baiwp，去除积分，改用直接计算的方式（伪积分）
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double besselk0_pseu(double x, bool* pOk = nullptr);
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// 返回对象体
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zxBessel* getBessel();
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private:
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static zxBesselInstance* _instance;
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zxBessel* m_pBessel;
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};
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#define _bslHelper zxBesselInstance::getInstance()
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#define _getBessel zxBesselInstance::getInstance()->getBessel
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#define _besselk zxBesselInstance::getInstance()->besselk
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#define _besseli zxBesselInstance::getInstance()->besseli
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#define _besselI0 zxBesselInstance::getInstance()->getBessel()->besselI0
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#define _besselI1 zxBesselInstance::getInstance()->getBessel()->besselI1
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#define _besselK0 zxBesselInstance::getInstance()->getBessel()->besselK0
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#define _besselK1 zxBesselInstance::getInstance()->getBessel()->besselK1
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#define _getbesselI0 zxBesselInstance::getInstance()->getBessel()->getbesselI0
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#define _getbesselI1 zxBesselInstance::getInstance()->getBessel()->getbesselI1
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#define _getbesselK0 zxBesselInstance::getInstance()->getBessel()->getbesselK0
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#define _getbesselK1 zxBesselInstance::getInstance()->getBessel()->getbesselK1
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#define _besselk0_pseu zxBesselInstance::getInstance()->besselk0_pseu
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