working on permutation

2024-01-16 22:03:46 +01:00
parent 41e9c359d5
commit 1e83fcfaf9
4 changed files with 126 additions and 5 deletions
--- a/vec.h
+++ b/vec.h
@@ -253,6 +253,17 @@ public:
 		return r;
 		}

+        NRVec concatscaled(const NRVec &rhs,  const T alpha=1) const
+                {
+                if(nn==0) return rhs;
+                if(rhs.nn==0) return *this;
+                NRVec r(nn+rhs.nn);
+                for(int i=0; i<nn; ++i) r[i] = (*this)[i];
+                for(int i=0; i<rhs.nn; ++i) r[nn+i] = rhs[i]*alpha;
+                return r;
+                }
+
+
 	//!concatenate vector into *this 
 	void concatme(const NRVec &rhs) 
 		{