Am 23.09.2010 11:59, schrieb Matthias Ruess: > I need to draw the density function of the Vasicek distribution: This > density function has the following structure: > > a * Exp[ (b * norminv(x) + c)^2 + d * norminv(x)^2 ] where a,b,c and d > are constants. please give some senseful values for the constants a,b,c,and d Herbert