#6559: [with patch, needs review] Real domain for symbolic variables
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Reporter: gmhossain | Owner:
Type: enhancement | Status: new
Priority: major | Milestone:
Component: symbolics | Keywords:
Reviewer: | Author: Golam Mortuza Hossain
Merged: |
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Changes (by newvalueoldvalue):
* author: => Golam Mortuza Hossain
Old description:
> In new symbolics, the default symbolic variables are complex.
> However, sometime it is useful/desirable to make the domain of
> variables to be real.
>
> Currently, there are no way to specify the domain of variables
> in Sage although underlying Ginac allows it. For example: following
> would to be good to have.
> {{{
> sage: var('x,y,z', domain='real')
> }}}
New description:
In new symbolics, the default symbolic variables are complex.
However, sometime it is useful/desirable to make the domain of
variables to be real.
Currently, there are no way to specify the domain of variables
in Sage although underlying Ginac allows it. For example: following
would to be good to have.
{{{
sage: var('x,y,z', domain='real')
}}}
Instructions for installing these patches (sage-4.1.1)
'''(1) Pynac patch'''
(a) Get the pynac spkg
http://sage.math.washington.edu/home/burcin/pynac/pynac-0.1.8.p2.spkg
(b) Apply the pynac patch for enhanced symbols
http://www.math.unb.ca/~ghossain/texname-and-domain-of-symbols-
pynac.patch
(c) install the patched spkg in Sage.
'''OR''' if you are feeling lazy, you can directly install my patched
copy of pynac from here
http://www.math.unb.ca/~ghossain/pynac-0.1.8.p2-symbols.spkg
'''(2) Sage patch:'''
Apply the attached sage patch after modified pynac spkg is installed
'''Notes:'''
#6403 will also be resolved by this patch
#6340 patch conflicts with this patch. This patch here should supersede
the patch at #6340.
--
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6559#comment:2>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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