How to Use Calculus to Figure Area between Two Curves How to Integrate by Parts How to Find the Volume of a Solid with a Circular Cross-Section

# How to Find Approximate Area Using Sigma Notation

This video tutorial shows you how to express the area under a curve with Sigma notation (or summation notation). You can use Sigma notation as a simpler way to write the sums of a long series of numbers that follow a specific mathematical pattern.