have taken every effort to provide a high quality of this website.
there may be errors in the program. Therefore, we can not take
responsibility for applying this website: the user bears fully
the responsibility for using the calculated results. In particular,
it is the user's task to check input data for correctness and
consistency (take care to use the correct units!), and to control
the results for reliability.
case errors are found, it would be of immense help to contact
the authors: please, send an e-mail to