NNFS p.135

Started on the iteration, not need to rewrite matadd.h and need to make matrandom.h.

include/numerics/vecargmax.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "./utils/vector.h"
+
+namespace numerics{
+	
+	template <typename T>
+	T vecarmax(const utils::Vector<T>& a){
+
+		const uint64_t N = a.size();
+		uint64_t idx = 0;
+		T value;
+
+		for (uint64_t i = 0; i < N; ++i){
+			if (value > a[i]){
+				value = a[i];
+				idx = i;
+
+			}
+		}
+		return idx;
+	}
+
+
+} // namespace numerics
+