Hmmm ... upon reading the same docs page linked above, I see the following:
__{abs,neg,lt,le,gt,ge,invert,and,or,add,sub,mul,div,truediv,floordiv}__
Those elemwise operation are supported via Python syntax.
That must be where `T.add` comes from. I'll still need to investigate on
the difference between `T.add` and `T.sum` but maybe this will help...
On Monday, April 24, 2017 at 9:09:38 AM UTC-7, Daniel Seita wrote:
>
> Hi all,
>
> I am reading through some theano code written by someone else (the actual
> file is here
> <https://github.com/joschu/modular_rl/blob/d1aeb866f4293d4458de1bc02a42e380289e9c43/modular_rl/core.py>
>
> if you're curious but it shouldn't matter for this question).
>
> I've noticed that the code uses two functions from theano: `add` and `sum`.
>
> I found the theano.tensor.sum docs linked here
> <http://deeplearning.net/software/theano/library/tensor/basic.html?highlight=theano%20tensor%20sum#theano.tensor.sum>.
>
> However, I surprisingly can't find any documentation for the `add` method
> (or even any existing questions here or on stack overflow). I know it seems
> obvious that the add method just sums up its arguments, but I just want to
> be extra sure. I'm also curious about if there's an alias, i.e. if
> `T.add(x,y)` is the same as `x+y` where `x` and `y` are theano variables.
> Finally, I'd also be curious about the differences between `add` and `sum`
> in theano.
>
> Thanks.
>
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