[sage-support] Re: Possible problem in delsarte_bound_hamming_space

2013-12-15 Thread P Purkayastha
On 12/15/2013 03:01 PM, P Purkayastha wrote: On 12/15/2013 06:46 AM, Peter Mueller wrote: The function delsarte_bound_hamming_space(n, d, q, isinteger=False, return_data=False, solver='PPL') offers the option isinteger=True. As the doc doesn't tell it, I got a little curious what is assumed to

[sage-support] Re: Binary variables in Integer Programs solved with CPLEX have wrong bounds

2013-12-15 Thread Nathann Cohen
Hello !!! It seems that Integer Programs solved with CPLEX sometimes have the wrong bounds on binary variables. For instance, Well, as you say CPLEX defined a binary type. And does not associate bounds with such variables, because it knows it is binary. Anyway : sage:

[sage-support] [ANN] OpenOpt suite v 0.52

2013-12-15 Thread dmitrey
Hi all, I'm glad to inform you about new OpenOpt Suite release 0.52 (2013-Dec-15): Minor interalg http://openopt.org/interalg speedup oofun expression MATLAB solvers fmincon http://openopt.org/fmincon and fsolve have been connected Several MATLAB ODE http://openopt.org/ODE

[sage-support] Re: Possible problem in delsarte_bound_hamming_space

2013-12-15 Thread Peter Mueller
I think isinteger probably makes sense for the delsarte_bound_additive_hamming_space() function. Of course it does. But this function is dedicated to codes which are abelian groups, so the weight distribution coincides with the distance distribution. I didn't say that I have concerns

[sage-support] Re: Possible problem in delsarte_bound_hamming_space

2013-12-15 Thread P Purkayastha
On 12/15/2013 08:10 PM, Peter Mueller wrote: I think isinteger probably makes sense for the delsarte_bound_additive_hamming_space() function. Of course it does. But this function is dedicated to codes which are abelian groups, so the weight distribution coincides with the distance

[sage-support] Re: Possible problem in delsarte_bound_hamming_space

2013-12-15 Thread Dima Pasechnik
On 2013-12-14, Peter Mueller ypf...@googlemail.com wrote: The function delsarte_bound_hamming_space(n, d, q, isinteger=False, return_data=False, solver='PPL') offers the option isinteger=True. As the doc doesn't tell it, I got a little curious what is assumed to be integral. Looking at the