NORMALD_ICDF (LEFT/CENTER/RIGHT)

[StephanP]

I think that would do very well, indeed.
Are you a member of the development team?

One minor discussion topic: in his code Wes opted for the terms inner/outer as opposed to the center/tail I suggested.
1. if we choose "center" then I think its counterpart should be the plural form "tails"
2. inner/outer are fine with me as well
I leave the decision to those more knowledgeable.

Would the other inverse distribution functions (T, Chi Square, F) be enhanced in a similar way?
What do you think of Wes' suggestion to open a Wizard if this function is called without parameters?