'op'>&lt;-</span> <span class='va'>x</span><span class='op'>[</span><span class='fl'>1</span><span class='op'>:</span><span class='fl'>100</span>,<span class='fl'>1</span><span class='op'>:</span><span class='fl'>1000</span><span class='op'>]</span><span class='op'>%*%</span> <span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span><span class='op'>(</span><span class='fu'><a href='https://rdrr.io/r/base/rep.html'>rep</a></span><span class='op'>(</span><span class='fl'>2</span>,<span class='fl'>