Merge pull request #2676 from nghiaho12/fix_double_promotion

Fixed double promotion warning when doing printf in Vector.hpp

src/lib/mathlib/math/Vector.hpp

@@ -353,7 +353,7 @@ public:
 		printf("[ ");
 
 		for (unsigned int i = 0; i < N; i++)
-			printf("%.3f\t", data[i]);
+			printf("%.3f\t", (double)data[i]);
 
 		printf("]\n");
 	}