Introduction of Calculus

This week we learned the two parts of calculus, one is Area problem, which is also called integral calculus. The other is the Tangent problem, which is also called differential calculus. In the Tangent problem we found a way to find the answer and also know the equation. I also learned to make myself positive, positive which is the most important thing in the world. When I make a mistake, I need to still positive and just review positively again and again and again and again. I learned a sentence called past is past, I need to forget the past and start a new class. It is very profound.