How to use sqrt for input expression?

13 Dec 2001

      Dear GiNaC developers,

I'm using GiNaC for making numerical simulation tools.

My problem with GiNaC is how to handle 'sqrt' function in
expression input.  The simplest example is,

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

using namespace GiNaC;
#include <iostream.h>
int main()
{
  symbol x("x");
  ex e("sqrt(x)",lst(x));
  cout << e <<endl;
}
=======================================

When it runs, it makes core dump.
When I use 'sin' instead of 'sqrt', the result is what
I expected with GiNaC library.

Is it a bug or normal?  If normal, how to input expression
that contains 'sqrt' function?

Best regards,

Hidehiro Fujio

NEC Corporation, Internet System Laboratory
Kawasaki, Japan 216-8555
E-mail: fujio@ccm.cl.nec.co.jp

How to use sqrt for input expression?

Hidehiro FUJIO