Question

anyone knows what limit is ?

Answer 1

A limit is an extent or boundary, without providing any context can't give you a more specific answer.

Answer 2

Mathematically speaking, it's a number or something that you're getting nearer and nearer with as you approaches infinity.

Answer 3

limit in differentiation

Answer 4

See these videos
http://www.khanacademy.org/math/differential-calculus/limits_topic

Answer 5

This is the formal definition of limit http://m.youtube.com/results?q=definition%20of%20limit%20calculus&sm=1

Answer 6

When we are looking for the derivative is sessions one and two, as far as I've gotten so far since I'm watching the videos two or three times each (but also based on "slide rule calculus" from 1970, ...

the limit is the number that we are approaching, the answer that we are approaching, getting closer and closer to, as our defining variable, usually "delta x" or "change in x," approaches zero.

Whether we approach the answer with negative values of "delta x" getting closer and closer to zero, or with positive values getting closer and closer to zero, we reach the same limit, the same value for the slope of the tangent, which is what we're trying to figure out.

Hope this helps a bit. (Actually, I know you don't need the answer any more, but I posted this to help other people who see your question and want more of an idea).

John