.h updated

opti.h

@@ -16,10 +16,17 @@ struct Point
 };
 
 Point* line(double a, double b);
+double popow(double v, double w);
 double double_random(double min, double max);
-Point* cloud(Point* a_line);
+Point* cloud1(Point* a_line);
 Point* cloud2(double a, double b);
-double* average(Point* my_cloud, int cloud_size);
-double* a_and_b(double* my_average);
+Point* cloud3(double a, double b);
+double* averages(Point* my_cloud, int cloud_size);
+double* a_and_b(double* my_averages);
+double* sums(Point* my_cloud, int cloud_size);
+double gradient(double a, double b, Point* my_cloud, int cloud_size, bool is_a);
+double gradient_descent(double a, double b, double my_gradient, bool is_a);
+double slope();
+double cost(double a, double b, Point* my_cloud, int cloud_size);
 
 #endif
\ No newline at end of file