PHI

Syntax:

PHI( z:Number )

Returns the value of the probability density function (PDF) for the standard normal distribution[1] (i.e. the normal distribution with mean value of zero and standard deviation of one).

Revisions:

This function was added in 2.00.

  1. Weisstein, Eric W. "Standard Normal Distribution." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/StandardNormalDistribution.html