Category talk:Waves
 | This category does not require a rating on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | |||||||
‹See TfM›
| ||||||||
.jpg){kind=small}
why is this under category:Differential equations? —Preceding unsigned comment added by 217.132.104.213 (talk) 12:11, 23 May 2008 (UTC)