It is discussed here that
|\epsilon| \leq \epsilon_{machine}
But, it should be other way around, i.e.
|\epsilon_{machine}| \leq \epsilon
since as \epsilon_{machine} is the smallest measurable quantity, as the gap between 2 consecutive numbers increases gradually on either sides of number line as shown in the class notebook.
Also, its discussed that
fl(x) = x . (1 + \epsilon)
But, it can be either of
fl(x) = x . (1 + \epsilon)
or
fl(x) = x . (1 - \epsilon)
based on which its more close to.
Any thoughts on this?