Sync public subset from Flux

include/numerics/vecexp.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include "./utils/vector.h"
+
+namespace numerics{
+	
+
+	template <typename T>
+	utils::Vector<T>  vecexp(const utils::Vector<T>& a){
+		utils::Vector<T> b = a;
+		for (uint64_t i = 0; i < a.size(); ++i){
+			b[i] =  numerics::exp(a[i]);
+		}
+		return b;
+	}
+
+
+} // namespace numerics
+