Dear all,<br><br>How I can get via a simple calculation (eg. HF level) the matrix of the second energy derivatives respect to the cartesian coordinates (Hessian)?<br><br>example after a scf calcularion I put:<br><br>hessian;<br>
print,hessian<br><br>but the hessian components are not returned in the molpro output file<br>thanks<br><br>