擅长:python、mysql、java
<p>这是<a href="http://docs.scipy.org/doc/numpy-1.10.0/reference/generated/numpy.outer.html" rel="nofollow">^{<cd1>}</a>:</p>
<pre><code>In [2]: np.outer([1, 2, 3], [2, 3, 4, 5])
Out[2]:
array([[ 2, 3, 4, 5],
[ 4, 6, 8, 10],
[ 6, 9, 12, 15]])
</code></pre>