...some special complex singular points is empt set.
所有跟帖:
• That means a can take any number except real number. -jinjing- ♀ (0 bytes) () 07/24/2011 postreply 17:27:52
• That means a can take any number except real number. -jinjing- ♀ (0 bytes) () 07/24/2011 postreply 17:27:52