if the operands are 1:4 length they might be a particular form of 4:4 n then we might find better orders for Karatsuba algo (1960) <span style="font-size: smaller;" class="autosigned">— Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/93.118.212.93|93.118.212.93]] ([[User talk:93.118.212.93|talk]]) 20:54, 25 May 2012 (UTC)</span><!-- Template:Unsigned IP --> <!--Autosigned by SineBot-->
:Yes, that is true (if I understand your idea correctly) and is called [[Toom-Cook multiplication]].--[[User:LutzL|LutzL]] ([[User talk:LutzL|talk]]) 12:45, 7 December 2012 (UTC)
