On November 11. 1675, Leibniz demonstrated integral calculus for the first time to find the area under the graph of the Y = F(X) function. Gottfried Wilhelm (von) Leibniz, who was born on July 1, 1646, was a German mathematician, philosopher, scientist and diplomat. 

Trying to figure out difficult math equations, breathing through the problem can be helpful. Here are some simple breathing exercises.