In your original post, complete the following:

• Share  an engineering (or other) application of an infinite series.  Identify  it in math notation, an image of a graph, or in a clear explanation in the context  of the application.  You do not need to explain the entire topic, only  identify the infinite series within this application, and tell us some  of what it helps to accomplish here.  While the type of series  expansion you discuss will likely be the same as some of your  classmates, the application example you present should be unique.