Inv Chi Square Distribution (Not in Base Package)

Computes the value of x such that the condition

p = Prob{X <= x} is satisfied given the probability value, p, of a -distributed random variable, X, with n degrees of freedom.

probability must be greater than or equal to zero and less than or equal to one. If probability is out of range, the VI sets x to NaN and returns an error.
degrees of freedom must be greater than zero: n > 0. If degrees of freedom is less than or equal to zero, the VI sets x to NaN and returns an error.
x is the value of the chi-squared distributed random variable.
error returns any error or warning condition from the VI.