On Tue, Jul 13, 2010 at 6:39 AM, Andrey Novoseltsev <novos...@gmail.com> wrote: > On Jul 13, 3:37 am, Carl Witty <carl.wi...@gmail.com> wrote: >> On Thu, Jun 17, 2010 at 2:18 PM, Volker Braun <vbraun.n...@gmail.com> wrote: >> > Unsurprisingly, setting the random seed makes the random_expr() always >> > return the same value: >> >> > sage: set_random_seed(0xdeadbeef) >> > sage: random_expr(5) >> > tanh(-pi^real_part(v1)*sin(log(pi)*imag_part(v1))) >> > sage: set_random_seed(0xdeadbeef) >> > sage: random_expr(5) >> > tanh(-pi^real_part(v1)*sin(log(pi)*imag_part(v1))) >> > sage: random_expr(5) >> > v1 + arccos(e/golden_ratio) >> >> > I suggest that the doctests for sage.symbolic.random_tests simply set >> > the random seed to a fixed value. >> >> The testing framework automatically runs set_random_seed(0) before >> testing every docstring, so this shouldn't be necessary. >> >> Carl Witty > > I completely agree that this should not be necessary, but the output > of this function does change!!! > > Andrey
OK. Setting the random seed seems like a fine workaround for getting your patch in... the problem is unlikely to be in your patch, as you point out. But as the author of both sage.misc.randstate and sage.symbolic.random_tests, it makes me nervous when I don't understand what my code is doing. I tried to look into this, but I couldn't figure out how to reproduce the problem. Could you do me a favor and give nice simple instructions? (In particular, what version of Sage do I start with and what is the complete list of patches to apply?) Thanks, Carl -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
