Returns true iff the elements of the Tensor are contiguous in memory. 

  -- normal tensors are contiguous in memory
> x = torch.Tensor(4,5):zero()
> = x:isContiguous()
true
  -- y now "views" the 3rd row of x
  -- the storage of y is the same than x
  -- so the memory cannot be contiguous
> y = x:select(1, 3)
> = y:isContiguous()
false
  -- indeed, to jump to one element to
  -- the next one, the stride is 4
> = y:stride()
 4
[torch.LongStorage of size 1]