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DS-1000 / 401 / I am trying to convert a MATLAB code in Python. I don't know how to initialize…

Problem

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Problem:
I am trying to convert a MATLAB code in Python. I don't know how to initialize an empty matrix in Python.
MATLAB Code:
demod4(1) = [];
I want to create an empty numpy array, with shape = (3,0)

A:
<code>
import numpy as np
</code>
result = ... # put solution in this variable
BEGIN SOLUTION
<code>

library

Numpy

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Source and history

upstream_id / Original problem ID
401
task_id
35644a1a-f1d3-5573-98fc-e3cd34dcdb35
task_key
default--test--401
task_revision_id
1
config / split
default / test

Official source

initial import