Guidance on method definition

[ljulliar]

I was about to write the spec for NDArray#sqrt when I realized that as it is today I can only call:

z = MXNet::NDArray.sqrt(x)
which means NDArray.sqrt (class method)

I guess for #sqrt to work I need to implement

def sqrt
....
end

in NDArray Ruby class, right ?

[ljulliar]

In other words int he MXNet Ruby interface are we happy with the class call or do we want to also systematically define the instance method call as well.

If I define NDArray#sqrt as

    def sqrt(*args, **kwargs)
      Ops.sqrt(self, *args, **kwargs)
    end

We can chose to use either
z = MXNet::NDArray.sqrt(x) or
z = x.sqrt
Shall we systematize such definition of instance methods ?

[mrkn]

@ljulliar please follow the implementation of Python binding.

On MXNet::NDArray#sqrt, the corresponding python's implementation is:

def sqrt(self, *args, **kwargs)
  return op.sqrt(self, *args, **kwargs)

So you can write in Ruby as:

def sqrt(*args, **kwargs)
  Ops.sqrt(self, *args, **kwargs)
end