Elementary question

Hello!

I do not understand the min and max value of the case statement.

The help file shows an example with one switch. The variable "t" runs from 0 to 0.5 in the first half of the switch case, and from 0.5 to 1 in the second half. This is 50% both times, which I thought was due to the fact that the differens between the min and max of both halves of the case statement is equal to 50% of the total differens (from -1 to 2)

But as soon as I start using 2 switches, this way of thinking really starts being unuseable.

Moreover I became confused when i saw that some of the premade element didnt run from -1 to 2. For instance, Buster's cobra roll runs from -0.01 to 1.01.

How does this hang together. Please explain