[SciPy-user] Fwd: Scipy_core and numarray
oliphant at ee.byu.edu
Thu Oct 6 12:35:13 CDT 2005
Alan G Isaac wrote:
>>>Along the latter lines, I have a more practical question: one
>>>numarray capability that I used a lot was the ability to create
>>>uninitialized arrays, such as
>>> arr = numarray.array(shape=(3,5), type=Float64)
>On Thu, 06 Oct 2005, Robert Kern apparently wrote:
>>arr = scipy.empty((3,5), scipy.Float64)
>Can you please explain what "unitialized" means in this
>context and what the advantage is over using zeros?
It's faster. Often you are going to fill the array with something. So,
why waste time filling it with zeros first...
More information about the SciPy-user