I have been using print_latex and I found that the following piece of
code
#include <iostream>
#include <ginac/ginac.h>
using namespace std;
using namespace GiNaC;
int main() {
GiNaC::ex q;
q = 2 * pow(6, numeric(1,3));
q.print(print_latex(std::cout));
}
produces the output
2 6^{{(\frac{1}{3})}}
which latex then typesets in the wrong way, since the space is lost.
Putting a \cdot in place of the blank seems to fix the problem.
Best wishes.
Alessandro Zaccagnini
Universita' di Parma