[idxs1][idxs2]</code>. Rather, the entry <code>d[i,~j]</code>
after executing the above is given by</p>
<pre><code>d[i, j] == c[idxs1, idxs2][i, j] = c[idxs1[i], idxs2[j]]</code></pre>
<p>This example illustrates the operation of multiple indexing in the
general case: a multiple index like <code>idxs1</code> converts an index
<code>i</code> used on the result (here, <code>c[idxs1, idxs2]</code>) to index
<code>idxs1[i]</code> in the variable being indexed (here, <code>c</code>). In
contrast, a single index 