Analysis of information sources in references of the Wikipedia article "Continuous function" in English language version.
Example 5. The function is continuous on and on , i.e., for and for in other words, at every point in its domain. However, it is not a continuous function since its domain is not an interval. It has a single point of discontinuity, namely , and an infinite discontinuity there.
Example 5. The function is continuous on and on , i.e., for and for in other words, at every point in its domain. However, it is not a continuous function since its domain is not an interval. It has a single point of discontinuity, namely , and an infinite discontinuity there.