točno tako, riješenje nije lopta, no mada je slično njoj.
A volumen 3xintegral, najbolje u standardnim koordinacijama ili polarnim !
"Multitasking - ability to f##k up several things at once."
"It works better if you plug it in."
"As a rule, software systems do not work well until they have been used, and have failed repeatedly, in real applications."
"The one who is digging the hole for the other to fall in is allready in it."