InverseFunction[f] represents the inverse of the function f, defined so that InverseFunction[f][y] gives the value of x for which f[x] is equal to y. InverseFunction[f, n, ...
InverseErf[s] gives the inverse error function obtained as the solution for z in s = erf(z).
InverseFourier[list] finds the discrete inverse Fourier transform of a list of complex numbers.
InverseEllipticNomeQ[q] gives the parameter m corresponding to the nome q in an elliptic function.
InversePermutation[perm] returns the inverse of permutation perm.
InverseGammaDistribution[\[Alpha], \[Beta]] represents an inverse gamma distribution with shape parameter \[Alpha] and scale parameter ...
InverseHaversine[z] gives the inverse haversine function hav -1 (z).
InverseChiSquareDistribution[\[Nu]] represents an inverse \[Chi]^2 distribution with \[Nu] degrees of freedom.InverseChiSquareDistribution[\[Nu], \[Xi]] represents a scaled ...
Inversions[p] counts the number of inversions in permutation p.
InverseCDF[dist, q] gives the inverse of the cumulative distribution function for the symbolic distribution dist as a function of the variable q.