ELI5: Explain Like I'm 5

Unit interval

A unit interval is like a rule that says you can only play with a toy between two certain points. Imagine you have a toy car and your mom tells you that you can only play with it between 12:00 pm and 1:00 pm. That's a unit interval! The rule is that you can only use the toy during a specific time.

In math, a unit interval is a rule that says you can only use numbers between zero and one. You can't use any numbers outside of that range. It's like a box that only allows certain numbers. Zero is the starting point and one is the ending point. If you want to use a number, it must be between zero and one.

For example, if you want to measure how long a line is, you can use a unit interval between zero and one. You can say that the line is 0.5 units long, which means it's halfway from the starting point to the ending point of the interval.

Overall, a unit interval is like a toy car's playtime or a box that only allows certain numbers. It helps us keep things organized and within a specific range.