Integral de Riemann

The Riemann integral is a method for calculating the area under a curve on a graph. It works by dividing the region into many thin slices, estimating each slice’s area (as a rectangle), and then summing these areas. As the slices become very thin, this sum approaches the exact area under the curve. This process allows us to precisely measure the accumulation of quantities described by functions, like distances or total amounts, providing a rigorous way to find totals from rates or densities.