CatagoricalCrossentrophy

Fixed the loss functions for categories and is ready for accuracy calculation on page 129

include/numerics/log.h

@@ -0,0 +1,25 @@
+#pragma once
+
+
+#include "./utils/vector.h"
+#include "./utils/matrix.h"
+
+
+namespace numerics{
+	
+
+	template <typename T>
+	void inplace_log(T a){
+		a = std::log(a);
+	}
+
+	template <typename T>
+	T log(const T a){
+		T b = a;
+		inplace_log(b);
+		return b;
+	}
+
+
+} // namespace numerics
+