What is Extends continuously in two directions?

Answer 1

"Extends continuously in two directions" typically refers to a mathematical or physical concept where a function or a geometric object is defined and maintains its properties without interruption across a certain domain. For example, in calculus, a function that is defined on an interval and approaches specific limits as it goes to positive and negative infinity can be said to extend continuously in both directions. In geometry, a line or surface that stretches infinitely in both directions also exemplifies this idea.