Can you find a function that is differentiable at the origin but the function itself is not continuous at the origin?
1. Consider infinitely-dimensional spaces
2. Consider partially differentiable versus totally differentiable
3. Consider word riddle
Being more of a number type of guy, I think I could come up with 1. and 2., but I don't want to spoil the fun...
Posted by JLo
on 2006-08-28 11:49:53