ELECTRONIC	s l a s h   s l a s h   m a t h w o r l d dot w o l f r a m dot c o m   s l a s h   p e r f e c t s q u a r e d i s s e c t i o n dot h   t   m   l	s l a s h   s l a s h   m a t h w o r l d dot w o l f r a m dot c o m   s l a s h   p e r f e c t s q u a r e d i s s e c t i o n dot h   t   m   l	1