tag:blogger.com,1999:blog-196952435317788508.post9160390249570463180..comments2010-03-12T01:21:28.061-08:00Tim Peltonhttp://www.blogger.com/profile/04312832673415393344noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-196952435317788508.post-14271724378563047992010-01-29T09:11:42.814-08:002010-01-29T09:11:42.814-08:00<b>Hello,</b><br /><br />I&#39;m the author of Column Subtraction and I would like to thank you for your kind review. <br /><br />You mentioned alternative algorithms and I have now two new apps for subtraction that use alternative algorithms: <a href="http://www.idevbooks.com/apps/partial_diff_subtraction.php" rel="nofollow">Partial Differences Subtraction</a> and <a href="http://www.idevbooks.com/apps/trade_first_subtraction.php" rel="nofollow">Trade-First Subtraction</a>. For addition I have one alternative algorithm: <a href="http://www.idevbooks.com/apps/partial_sums_addition.php" rel="nofollow">Partial Sums Addition</a>. <br /><br />There is also a new <a href="http://www.idevbooks.com/apps/division.php" rel="nofollow">Long Division app</a> that uses the traditional algorithm.<br /><br />Thank You,<br /><br /><i>Esa Helttula</i>, <a href="http://www.idevbooks.com/index.php" rel="nofollow">idevbooks.com</a>iDevBookshttp://www.blogger.com/profile/13695916817019856426noreply@blogger.com