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performance of symbolicc ++

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performance of symbolicc ++

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Anyone has experience with the SymbolicC++ ? I'm trying to solve some linear problem with this library, but the performance seems not acceptable, here's my test

#pragma warning(disable: 4800 4801 4101 4390)
#include<iostream>
using namespace std;
#include "Symbolic/symbolicc++.h"

int main() {
    // x==10  y==9  z==7
    Symbolic x("x"), y("y"), z("z");
    Equations rules = (
        x + y + z == 26,
        x - y == 1,
        2*x - y + z == 18
    );

    list<Symbolic> s = (x, y, z);

    list<Equations> result = solve(rules, s); // slow here

    for(auto& x : result) {
        cout << x << endl;
    }
}

The solve function takes 402ms(debug)/67ms(release) on an i7 cpu, is that too slow for a simple problem like this? Anyone knows why?

Thanks

Symbolic computations are slow, they need if you want to handle formulaes.

If you just want to solve system of linear equations, consider using tool, specially created for that, like Eigen(http://eigen.tuxfamily.org/index.php?title=Main_Page), BLAS(http://www.netlib.org/blas/).

Also read http://en.wikipedia.org/wiki/Symbolic_computation

Tags linear

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