template<class DstArrayT, class SrcArrayT>
| double Impala::Core::Feature::WeibullNgbPnLoop< DstArrayT, SrcArrayT >::TriGamma | ( | double | x | ) | [inline] |
Definition at line 734 of file WeibullNgbPnLoop.h.
References Impala::Core::Feature::WeibullNgbPnLoop< DstArrayT, SrcArrayT >::dpsifn(), ISNAN, and ML_NAN.
00735 { 00736 double ans; 00737 int nz, ierr; 00738 if(ISNAN(x)) return x; 00739 dpsifn(x, 1, 1, 1, &ans, &nz, &ierr); 00740 if(ierr != 0) 00741 { 00742 errno = EDOM; 00743 return ML_NAN; 00744 } 00745 return ans; 00746 } // double triGamma()
Here is the call graph for this function:
