I would not disagree with you, Ralph—after all, it was your great book that got me onto the path of material testing, many thanks for your very useful Excel spreadsheets.
Originally Posted by RalphLambrecht
However, I have found that I wanted to understand the various ways of parametrising the curves, and their gradients, as I was getting into it all. I suppose it is personal. Also, at this stage, I am finding that, for my work, CI matches my needs a little better than other gradients. Since there were no easily available tools for computing it, I just wrote one yesterday, so it is quite easy—for me at least—to have a CI at a push of a button.