Hi, Is there a certain number of times we should interpolate to obtain things like implied volatility? I see that in a lot of cases, the Examiners interpolate twice, but sometimes it isn't made clear. When do we know when to stop interpolating? Thanks!
I would have thought that for the number of marks usually available for implied volatility questions, it's seldom worth interpolating more than once. Do you have any examples of the Examiners interpolating twice?
