TINV returns inverse cumulative function of the student distribution

 x = tinv(p,v);

 Computes the quantile (inverse of the CDF) of a the student
    cumulative distribution with mean m and standard deviation s
 p,v must be matrices of same size, or any one can be a scalar. 

 see also: TPDF, TCDF, NORMPDF, NORMCDF, NORMINV 

Package: nan