[web-animations] Time fraction when iteration duration is zero

Hi All,

Time fraction calculation algorithm
(http://w3c.github.io/web-animations/#calculating-the-time-fraction)
contains several steps for the case when iteration duration is zero. It's
not obvious to understand the idea of thes algorithm looking at algorithm
only. May be it makes sense to add non-normative section explaining why
these steps are needed and why in this case time fraction is not simply
zero or 1?

Thank you,
Sergey G. Grekhov

Received on Tuesday, 10 March 2015 12:59:05 UTC