Re: [Maxima-discuss] float(exp(10000)) works, but float(exp(10000/3)) doesn't

[David S. <d.s...@go...>]

(please excuse my repeated posting)

I think I found the bug. It's in the "exptrl" function (simp.lisp, line 2113).
In the following case:

float(exp(10000/3));

The program runs into line 2162:

(exp (* r2 (log r1)))))))

Calling Lisp's own "exp" function, but this circumvents bigfloat
promotion, which is handled in the "exptb" function.
So I replaced that line with:

(exptb %e-val (* r2 (log r1)))))))

... and now float(exp(10000/3)) correctly gives a bigfloat number! :-)

I will run the testsuite with the change applied, and if nobody speaks
against it, I will commit.

Best regards,
David Scherfgen