Fixing Fast Gauss Transform compilation error due to series expansion library update.
Fixing Fast Gauss Transform compilation error due to series expansion library update.

datachand/mlpack,chenmoshushi/mlpack,trungda/mlpack,theranger/mlpack,erubboli/mlpack,ajjl/mlpack,palashahuja/mlpack,bmswgnp/mlpack,ersanliqiao/mlpack,BookChan/mlpack,lezorich/mlpack,palashahuja/mlpack,ersanliqiao/mlpack,darcyliu/mlpack,BookChan/mlpack,BookChan/mlpack,darcyliu/mlpack,ajjl/mlpack,trungda/mlpack,palashahuja/mlpack,ranjan1990/mlpack,erubboli/mlpack,datachand/mlpack,chenmoshushi/mlpack,minhpqn/mlpack,stereomatchingkiss/mlpack,stereomatchingkiss/mlpack,bmswgnp/mlpack,thirdwing/mlpack,bmswgnp/mlpack,theranger/mlpack,darcyliu/mlpack,Azizou/mlpack,Azizou/mlpack,thirdwing/mlpack,minhpqn/mlpack,ranjan1990/mlpack,Azizou/mlpack,theranger/mlpack,lezorich/mlpack,ersanliqiao/mlpack,minhpqn/mlpack,stereomatchingkiss/mlpack,ranjan1990/mlpack,datachand/mlpack,ajjl/mlpack,lezorich/mlpack,trungda/mlpack,thirdwing/mlpack,chenmoshushi/mlpack,erubboli/mlpack