Modified lib function for model TSMFK01 to accept dw_orig as input and replaced functions to find math domain errors into maske replacements.
Task #7807 (https://gna.org/task/index.php?7807): Speed-up of dispersion models for Clustered analysis.
Authored by: tlinnet 2014-06-12
Parent: [r23875]
Child: [r23877]
