[GiNaC-devel] Base of natural logarithm

[Jan Rheinländer]

Hi,

is there a way to create a ginac object "e" such that log(e)
automatically evaluates to 1?

I tried


ex EulernumEvalf() {
  return numeric(cln::exp1());
}
const constant Euler_number("Eulernum", EulernumEvalf, "e",
domain::positive);


Thanks!

    Jan