How do I compute the Inverse gaussian distribution from given CDF?

As all you really want to do is estimate the quantiles of the distribution at unknown values and you have a lot of data points you can simply interpolate the values you want to lookup.

According to @mpiktas here I implemented a gradient descent algorithm for estimating my mu and lambda.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.