Maybe you need to override this function:
https://github.com/sympy/sympy/blob/master/sympy/interactive/printing.py#L90
Notice how some odd classes that don't fit the sympy standards have special
cases. Try adding your class to that list and see if it works.
Jason
moorepants.info
+01 530-601-9791
On Tue, Aug 26, 2014 at 6:57 PM, Alan Bromborsky <abro...@verizon.net>
wrote:
> I am trying to print a list of instances of a custom class. The input is -
>
> print (o3d.grad, o3d.grad)
>
> the output is (custom latex printer)
>
> [image: $$ (e_{x} \frac{\partial}{\partial x} + e_{y}
> \frac{\partial}{\partial y} + e_{z} \frac{\partial}{\partial z}, e_{x}
> \frac{\partial}{\partial x} + e_{y} \frac{\partial}{\partial y} + e_{z}
> \frac{\partial}{\partial z}) $$]
>
> however in ipyrhon notebook I input
>
> (o3d.grad, o3d.grad)
>
> I get out
>
> (e_{x} \frac{\partial}{\partial x} + e_{y} \frac{\partial}{\partial y} +
> e_{z} \frac{\partial}{\partial z},
> e_{x} \frac{\partial}{\partial x} + e_{y} \frac{\partial}{\partial y} +
> e_{z} \frac{\partial}{\partial z})
>
> Also the standard latex tuple and list printer is not using \left (
> \right and \left [ \right ) to enclose
> the tuple or list. How can I write a custom latex tuple and list printer
> that will also work in ipython notebook.
>
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