Sync public subset from Flux (private)

include/numerics/matdiv.h

@@ -0,0 +1,38 @@
+#ifndef _matdiv_n_
+#define _matdiv_n_
+
+
+#include "./utils/matrix.h"
+#include "./core/omp_config.h"
+
+
+namespace numerics{
+
+// ---------------- Serial baseline ----------------
+	template <typename T>
+	utils::Matrix<T> matdiv(const utils::Matrix<T>& A, const utils::Vector<T>& b, std::string method){
+        
+        utils::Matrix<T> C = A;
+
+        if (method == "row"){
+            for (uint64_t i = 0; i < A.rows(); ++i){
+                for (uint64_t j = 0; j < A.cols(); ++j){
+                    C(i,j) /= b[j];
+                }
+            }
+        }else if (method == "col"){
+            for (uint64_t i = 0; i < A.rows(); ++i){
+                for (uint64_t j = 0; j < A.cols(); ++j){
+                    C(i,j) /= b[i];
+                }
+            }
+        }else{
+            throw std::runtime_error("matdiv: choose div by: 'row' or 'col'");
+        }
+        return C;
+	}
+
+
+} // namespace numerics
+
+#endif // _matdiv_n_