Hi, if I do symbol x("x"); ex f=pow(x,10); f.print(print_latex(cout)); I get x^10 which latex prints out roughly as 1 x 0 Putting some curly braces around the exponent should fix the problem, e.g. if one replaces line 200 in power.cpp (GiNaC 0.8.3) exponent.print(x,precedence) by something like if (is_of_type(c,print_latex)) c.s<<"{"; exponent.print(x,precedence) if (is_of_type(c,print_latex)) c.s<<"}"; Best wishes, Stefan