This could be greatly sped up by changing
maxima.assume('...')
to
maxima.eval("assume(..)")
in the calculus code...
sage: timeit("maxima.eval('assume(x>0)')")
5 loops, best of 3: 53.2 ms per loop
sage: timeit("maxima.assume(x>0)")
5 loops, best of 3: 122 ms per loop
I don't have time to do this...
On Tue, Oct 14, 2008 at 7:32 AM, Stan Schymanski <[EMAIL PROTECTED]> wrote:
>
> Dear all,
>
> Is there a reason why the assume(...) command takes so much longer
> than var(...)?
> Example:
> %time
> var('av jbiom lwat p rwat veloc mort epot esv etv esb etb wv wb qbv
> bv')
> gives:
> CPU time: 0.00 s, Wall time: 0.00 s
> On the other hand,
> %time
> assume(p>0, veloc>0,
> mort>0,lwat>0,jbiom>0,rwat>0,av>0,av<1,wv>0,wb>0,bv>0)
> gives:
> CPU time: 2.91 s, Wall time: 8.78 s
>
> This is with sage 3.1.2. on an Intel Mac with OS X 10.4.11.
>
> Thanks for your help!
>
> Stan
>
>
> >
>
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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