I did a refactoring for Series vec! from LinePlot, I avoided the duplication from the original code. For |s| s I used the variable F, because it is a closure which takes the argument s and returns the operation done on the argument.
In this case, it was necessary because we were mapping the multiple seconds from 0 to the self.elapsed.inner_second() in the 2d space.
In this context s is used as usize so that's why we are using Fn(usize) -> usize.
I did a refactoring for Series vec! from LinePlot, I avoided the duplication from the original code. For |s| s I used the variable F, because it is a closure which takes the argument s and returns the operation done on the argument. In this case, it was necessary because we were mapping the multiple seconds from 0 to the self.elapsed.inner_second() in the 2d space. In this context s is used as usize so that's why we are using Fn(usize) -> usize.