Bug fix for math::BinomialCoefficient(n, k); the previous implementation returned 1 for negative k values, which is not correct (should be zero.
Bug fix for math::BinomialCoefficient(n, k); the previous implementation returned 1 for negative k values, which is not correct (should be zero.

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