radical

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不适合用于生产（代码质量感人）
Not suitable for production use.

介绍

分数、二次根式和多项式类

C语言编写的基础分数、二次根式和多项式类库，支持増查删改。
Elemental Fractions, Radicals and Polynomials.

本库通过GPLv3协议开源

Compile

mkdir build
cd build 
cmake ..

The target libradical.a will be in the build directory.

Usage

fraction.h

//数学
int       gcd(int a, int b);						//最大公因数
long long lgcd(long long a, long long b);
int       lcm(int a, int b);						//最小公倍数
int       qpow(int base, int expt);				//快速幂

//工具
Fraction initFrac(int up ,int down);       //初始化
void     fixsignFrac(Fraction* a);				//符号修正、错误处理
void     reduceFrac(Fraction* a);				//分数约分
void     reduce(int* a, int* b);              //数约分
void     printFrac(Fraction a);    //打印
int      _len_abs(int n);
void     pprintFrac(Fraction a);   //（实验性的）美观打印
int      cmpFrac(Fraction a, Fraction b);       //比较 返回-1 , 0 , 1
Fraction c(char myope, ...);               //运算器

//运算
Fraction addFrac(Fraction a, Fraction b);	//加法
Fraction subFrac(Fraction a, Fraction b);	//减法
Fraction mulFrac(Fraction a, Fraction b);	//乘法
Fraction divFrac(Fraction a, Fraction b);	//除法
Fraction powFrac(Fraction a, int expt);	//乘方

radical.h

//tool
Radical initRad(int up, int down, int in);
void printRad(Radical a);
Radical Radsqrt( int radicand );
Radical  sqrtFrac(Fraction a);               //分数开方
void printPoly(Polynomial ptrl);
int cmpRad(Radical a, Radical b);
bool isequalRad(Radical a, Radical b);

//calculation
Radical divRad(Radical a, Radical b);
Radical mulRad(Radical a, Radical b);
Polynomial addRad(Polynomial ptrl, Radical b);
Polynomial subRad(Polynomial ptrl, Radical b);
int gcdPoly(Polynomial ptrl);
Polynomial _PolyIntReduce(Polynomial ptrl, int* x);

//list
Polynomial initPoly();
void destoryPoly(Polynomial* ptrl);
int lenPoly(Polynomial ptrl);
Polynomial findPoly(Radical x, Polynomial ptrl);
Polynomial findkthPoly(int k, Polynomial ptrl);
Polynomial insertPoly(Radical x,int i, Polynomial ptrl );
Polynomial deletePoly(int i, Polynomial ptrl);

作者还在代码里画了一些香喷喷的大饼（头文件里没有）