Recent content by powerovergame

Symbols here <==> Symbols in the link [p] S X d rho N N D M

Found the answer here: http://math.stackexchange.com/questions/68614/why-do-these-inequalities-in-metric-spaces-hold Wow that was just... I would have NEVER guessed it right.

If there was time I would't be here. Oh well... it's life. It's funny how the instructor just put it there as if it a commonly used notation

Uh they are just all regular texts. Thanks for your help, I suspected it meaning neighborhood too, you see, neighborhood is defined by a point and a positive number. Here it is just a metric space and a positive number, what kind of things can be defined out of this? And this class doesn't...

Homework Statement Show for any metric space (S,d) and  e> 0 that N(e, S) <=  D(e, S) <= N(e/2, S) Homework Equations none The Attempt at a Solution Can somebody please tell me what does N(e,S) or D(e,S) even mean so I can at least know what I am asked to prove? I dig...

Let's not think about how to integrate, just think about the easy case, differentiation, you still wouldn't get nice results at all. http://the-genius-group-from-uc-berkeley.googlegroups.com/web/Tetration%20Differentiation.pdf?gsc=JivL3wsAAABzdSJOyPIJbvk4ERCPyg5o

Haha that is some excellent material, pretty much answers everything here.

thank you

What kind of energy field should I focused on? Solar? Geothermal? Biomass?

thanks for the help everyone. You guys are extremely informative.

Homework Statement Prove that: The union of a set U and the set of its limit points is the closure of U. Homework Equations Definitions: Closure: The closure of U is the smallest closed set that contains U. Limit points: if z is a limit point in U, then any open circle around...

I am currently about half way through the process of getting a physics degree (emphasized in cosmology) and a applied math degree (emphasized in quantum mechanics). Now my parents think that these two majors are useless in getting jobs, and wants me to study something that will help me get a...