Burcin Erocal wrote:
> I attached a patch to the trac ticket that contains an initial attempt
> at the MMA notation:
>
> http://trac.sagemath.org/sage_trac/ticket/6344
>
FYI, a few days ago Burcin uploaded a new patch on 6344 and asked for
review. Here are the examples:
OLD:
sage: var('x,y')
sage: f = function('f')
sage: f(x).derivative(x)
D[0](f)(x)
sage: f(x,x).derivative(x,2)
D[0, 0](f)(x, x) + 2*D[0, 1](f)(x, x) + D[1, 1](f)(x, x)
NEW:
sage: f(x).derivative(x)
D[1](f)(x)
sage: f(x,x).derivative(x,2)
D[2, 0](f)(x, x) + 2*D[1, 1](f)(x, x) + D[0, 2](f)(x, x)
NEW LATEX:
sage: latex(f(x).derivative(x))
f'\left(x\right)
sage: latex(f(x,x).derivative(x,2))
f^{(2,0)}\left(x, x\right) + 2 \, f^{(1,1)}\left(x, x\right) +
f^{(0,2)}\left(x, x\right)
More examples:
sage: binomial(x,y).derivative(x)
<boom>
sage: latex(floor(x).derivative(x))
D[0]\left \lfloor x \right \rfloor
sage: latex(ceil(x).derivative(x))
D[0]\left \lceil x \right \rceil
If you have an issue with the above printing, please speak now! If you
like this, it'd be great if you'd chime in as well.
Burcin indicates that this is a stepping stone, not necessarily a final
implementation. However, Burcin points out that we ought to settle on a
suitable output soon and move on from this issue.
Thanks,
Jason
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