 8 if it is omitted
or empty.
</p>
<p>If there are less than <var class="var">k</var> rows in <var class="var">A</var>, returns all rows.
</p>
<p>Returns an array of the same type as <var class="var">A</var>, unless ()-indexing <var class="var">A</var>
produces an array of a different type, in which case it returns that type.
</p>
<p>See also: head
</p>
</dd></dl>


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