code comment typo in 'intervals' section

[sweetIan]

the code example goes like this

var b = [nextafter(0, Infinity), 1]                           // interval closed on the left 
var c = [0, nextafter(1, -Infinity)]                          // interval closed on the right

however, I think the correct version is

var b = [nextafter(0, Infinity), 1]                           // interval closed on the right
var c = [0, nextafter(1, -Infinity)]                          // interval closed on the left

[mattdesl]

Should be fixed now