Continuity on an Interval
A function is continuous on an open interval $$\left(a,b\right)$$ if it is continuous at every point of the interval.
For a closed interval:
$$[a,b]$$
the function must be right-continuous at $$a$$ and left-continuous at $$b$$.
Usage
- Used when continuity is required over an entire interval rather than at a single point.