What does the sign ® mean? ?

Question

What does this mean:

lim (f(x)) = L

x ® a

??

Answer 1

Registered.

Answer 2

The correct technical term is a registered trademark which is a trademark for a product that has been registered with the USPTO. I know since I registered two yesterday.

Answer 3

thats the mark stating that the product or service is a registered patent.

Answer 4

the little r means 'registered'

Answer 5

It means registered. However in math it's something different!

Often random symbols ($, #, @, &, et cetera) are used like a variable to represent an operation rather than a value.

x (R) a may mean x + a, or x * a, or something more complex like 2x + 3a. Your job is to figure out what to do between x and a, depending on the problem.

OR it could be a typo. Maybe it's supposed to be an arrow, so it's the limit as x approaches a. That makes a lot more sense than what I said above, judging from the rest of your problem.

Answer 6

the product it is next to is a registered trademark

Answer 7

I think in this case of calculus probably means "restricted".

Answer 8

it probably should be an arrow (-->)

limit as x --> a of f(x) = L

some programs have auto "symbols"-- where a combination of characters turns into something like the registered trademark symbol!

Answer 9

it means registered, but a better question is why the h**l are you using it for calculus!?!?!