3 x 9 – The Other Way Roundby webcarepkJune 19, 2012 Tags:inversaljokesmathsreverse engineeringxkcd.com Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name * Email * Website ERROR: si-captcha.php plugin: GD image support not detected in PHP!Contact your web host and ask them to enable GD image support for PHP.ERROR: si-captcha.php plugin: imagepng function not detected in PHP!Contact your web host and ask them to enable imagepng for PHP.Comment * Notify me of follow-up comments by email. Notify me of new posts by email.