ginac库代数赋值运算

1.程序源码

#include <iostream>
#include <ginac/ginac.h>

using namespace std;
using namespace GiNaC;

int main()
{
        symbol x("x"), y("y");
        ex poly;

        poly = pow(x+y, 2);

        cout << poly.subs(lst(x==1,y==2)) << endl;

        return 0;
}

2.编译源码

$ g++ -o example example.c -lginac -lcln -I/usr/local/include -L/usr/local/lib64

3.运行结果

./example
9